Look up the boiling points of anisole and d-limonene. which one do you expect to elute first in gas chromotograpjhy

Answers

Answer 1
The primary factor that determines the elution order of compounds during gas chromatography, is the boiling point of the compounds. The lower the boiling point of a substance, the shorter retention time the substance will have. The retention time is the time it takes for the substance to be injected into the GC and reach the detector.

A lower boiling compound will elute faster (shorter retention time) than a higher boiling compound. The reason for this is the mobile phase of GC is a gas while the stationary phase is a liquid. Therefore, the more time a compound spends in the mobile phase, the faster it will elute. 

The boiling point of anisole and d-limonene are 153.8 °C and 176 °C, respectively. Therefore, anisole will have a shorter retention time since it has the lower boiling point.
Answer 2

Final answer:

In gas chromatography, compounds elute based on their boiling points, with those having lower boiling points eluting first. Since anisole has a lower boiling point than d-limonene, anisole is expected to elute first.

Explanation:

The question asks which compound, anisole or d-limonene, would elute first in gas chromatography (GC) based on their boiling points. In gas chromatography, compounds generally elute in order of increasing boiling points because compounds with lower boiling points have lower retention times on the GC column. Also, the elution order correlates with the strength of intermolecular forces (IMFs) affecting the compounds; compounds with stronger IMFs tend to have higher boiling points and adhere more to the stationary phase, thus eluting later. Although the specific boiling points of anisole and d-limonene are not provided in this answer, it is known that anisole has a boiling point of about 154°C, and d-limonene has a boiling point around 176°C. Therefore, one would expect anisole to elute first in gas chromatography due to its lower boiling point compared to d-limonene.


Related Questions

Consider melting ice cream. When it melts, it takes heat away from the environment and so the reaction is endothermic. When you freeze ice cream, the heat is being removed from what?

Answers

Hi!

First of all, the melting of ice cream is not a chemical reaction, because there is no change in the components of the ice cream and if you freeze the ice cream again, you will get the same ice cream that you had previously.

The melting of ice cream is an example of a physical change, in which a substance goes from solid to liquid state, and it is an endothermic physical change.

When you freeze ice cream, the heat is removed from the ice cream, making it an exothermic process, when heat is liberated to the environment and it's taken away from the substance, in this case, the ice cream.


Suppose your thermometer is off by 1.5 oc i.e. it reads values that are 1.5 oc higher. how would this affect the results in this experiment? (3 pts)

Answers

I assume that the experiment is about calculating the enthalpy of a reaction. 
If you consistently use the thermometer for all procedure in the experiment, the effect will be negligible because all temperature will be increased by 1.5 °C.

In enthalpy calculation, the energy is determined by the temperature differences. If the final and initial temperature increased by 1.5 °C, then the difference will not be changed.

\Final answer:

A thermometer reading off by 1.5 °C would significantly impact the accuracy of experimental results by overestimating temperature values, potentially leading to incorrect conclusions in experiments that require precise temperature measurements.

Explanation:

If your thermometer is off by 1.5 °C, meaning it reads values that are 1.5 °C higher, this discrepancy would significantly affect the accuracy of your experimental results. This error would lead to consistently overestimated temperature readings, causing potential misinterpretations of the outcomes. For example, in experiments where precise temperature control and measurement are crucial, such as in testing product formulations or determining chemical reaction rates, an inaccurate thermometer could lead to incorrect assessments of these processes.

In laboratory settings, accurate temperature measurement is pivotal for ensuring the validity of experimental results. An error of 1.5 °C could not only impact the interpretation of a single experiment but also compound in experiments relying on precise temperature measurements to gauge reactions or behaviors, thereby misleading conclusions and potentially invalidating the experiment's purpose. Moreover, in cases like accelerated shelf life testing, a small temperature discrepancy could result in significant errors in the estimated product shelf life, underscoring the importance of using accurately calibrated equipment. Examples include estimating expiry dates based on the stability of products at increased temperatures where a minor measurement error could drastically skew the results. Hence, ensuring that laboratory equipment, especially thermometers, are correctly calibrated is essential for experimental integrity and accuracy.

Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in water? check all that apply. view available hint(s) check all that apply. benzene, c6h6 potassium iodide, ki hexane, c6h14 lithium chloride, licl sodium bromide, nabr

Answers

Hydrocarbons do not dissolve well in water because they are nonpolar. On the other hand, salts dissolve much better. This means that benzene and hexane will not significantly dissolve, while the rest will. So the compounds that will dissolve in water are: potassium iodide, lithium chloride, and sodium bromide.

Which of these substances most likely dissolve in water? Check all that apply


You are at home in your air conditioned garage. You are planning a family road trip from New York to Florida. You are lnfating the tires of your suv. You fill each car-tire with about 10 Liters of air. The temperature inside your air conditioned garage is about 10 degrees Celsius. Your family packs the car, and you begin your trip to Florida. The temperature in New York is about 21 degrees Celsius, and the happen temperature in Florida is 32 degrees Celsius. Assuming the pressure stays constant from the garage all the way to Florida, what could to your car tires during your road trip.

Write a paragraph that makes a claim about what happen to the car tires

Answers

Hello!

According to the Charles' Law, the volume of a gas is proportional to temperature when pressure is constant. When going from New York to Florida, if the pressure is left constant the volume of the tires will increase.

The final volume of the tires can be calculated from the following equation, derived from Charles' Law:

[tex]V2= \frac{V1}{T1}*T2=\frac{10 L}{10degC}*32degC=32 L[/tex]

Have a nice day!

Which of the following are true about alloy steel chains?


A.
Adapt to the shape of the load

B.
All statements are true of alloy steel chains

C.
Best choice for hoisting hot materials

D.
Must be marked with a grade or manufacture’s mark

Answers

The correct option is B.
Alloy steel chains are usually opted for because they are strong, durable, resistant to abrasion and they have the ability to conform to the shape of the loads that they are carrying. In addition to all these properties, they also have the capacity to carry hot materials. These chains are typically made from various grades of alloys, therefore, manufacturers normally marked them in accordance with American Society for Testing and Maintenance guidelines. The chains are usually marked to show the following: size, grade, length and load capacity. The chain are often also marked with serial numbers and the manufacturers' names and brands.
Thus, all the facts mentioned about alloy steel chains in the options given above are correct. 

Answer: Option (B) is the correct answer.

Explanation:

A metal that tends to combine with two or more metal elements in order to gain strength or durability etc is known as an alloy.

For example, an alloy of steel contains elements like manganese, silicon, nickel, titanium, copper etc.

Some properties of alloys of steel are as follows.

They are able to adapt to the shape of the load applied. They are the best choice for hoisting hot material.Usually they are marked with a grade or manufacture’s mark.

Hence, we can conclude that all the given options are true about alloy steel chains.

Determine the osmotic pressure of a solution that contains 0.048 g of a hydrocarbon solute (molar mass = 340 g/mol0

Answers

m(CH) = 0.048 g
M(CH) = 340 g/mol
V = 350 mL = 0.35 L
T = 20 C = 293 K
π = ?

For determination of osmotic pressure we will use next equation:

π = c x R x T

c = n/V

n= m/M = 0.048/340= 0.00014 mol

c = 0.00014/0.35 = 0.0004 mol/L

π =  0.0004 mol/L × 8.314 LkPa/Kmol × 293 K

π = 0.97 kPa


Final answer:

The osmotic pressure of a solution containing 0.048 g of a hydrocarbon with a molar mass of 340 g/mol is calculated by first finding the molarity and then using the osmotic pressure formula, resulting in approximately 0.00345 atm.

Explanation:

To determine the osmotic pressure of a solution containing a hydrocarbon solute, first, calculate the molarity of the solution. The molarity (M) is the number of moles of solute per liter of solution. Since the molar mass of the hydrocarbon is given as 340 g/mol, you can find the number of moles of solute by dividing the mass of the solute by its molar mass.

Number of moles = Mass (g) / Molar Mass (g/mol) = 0.048 g / 340 g/mol = 0.000141 mol

The volume of the solution is not given, but assuming it's 1 liter for the sake of calculation. Divide the number of moles by the volume to get molarity:

Molarity (M) = Number of moles / Volume (L) = 0.000141 mol / 1 L = 0.000141 M

To find the osmotic pressure, use the formula:

Osmotic Pressure (II) = MRT

Where M is the molarity, R is the gas constant (0.0821 L·atm/(K·mol)), and T is the absolute temperature in Kelvin. Assuming room temperature (25°C or 298 K) for the calculation:

II = (0.000141 M) x (0.0821 L·atm/K·mol) x (298 K)

Therefore, the osmotic pressure is:

II = (0.000141) x (0.0821) x (298) ≈ 0.00345 atm

Assuming equal concentrations, rank these solutions by pH.

Answers

We can rank the solutions by pH if we know pKa and pKb values of the compounds above. pKa and pKb values can be found in any table of acid and base strength.

Since we have here both acids and bases, we need to transfer pKb values into pKa by subtraction the pKb values from pKw.

HNO3      pKa = -1.37
HCN         pKa =  9.21
NH3         pKb = 4.75          pKa= pKw-pKb = 14 - 4.75 = 9.25
Ca(OH)2  pKb = 2.43          pKa= 14 -  2.43 = 11.57
LiOH        pKb = -0.36         pKa= 14 - (-0.36) = 14.36

The compound with the smallest value pKa is the strongest acid, and it will have the lowest pH and vice versa.

When we set compounds according to the rule, we obtain the following rank:

HIGHEST pH

LiOH  
Ca(OH)2 
NH3 
HCN 
HNO3  

LOWEST pH

A population in an ecosystem cannot grow indefinitely. There are limiting factors in each ecosystem that keep a population within a certain size range. Which of the following is most likely NOT a limiting factor for a population of deer in a forest ecosystem?

 A. the number of perching birds present B. the amount of edible plants available C. the number of mountain lions present D. the amount of space in the forest

Answers

A. the number of perching birds present

THE ANSWER IS

the number of perching birds present


Which of these is not a precaution taken at nuclear power plants to ensure safety? Safety systems are built into them. All parts are kept in good repair. Enriched uranium is the fuel source. Processes are carefully monitored.

Answers

Answer: Enriched uranium is the fuel source.

The nuclear power plants utilizes the radiation energy from the fission of the heavy molecular weight atomic particles. These radiations can cause damage when exposed to the external air, they are capable of causing explosion, mutation in the living beings. Therefore, safety measures should be taken to prevent the damages.

Enriched uranium is the fuel source is not the precaution taken at the nuclear power plant to ensure safety because it is just explaining the fact that the uranium is the source of radiation. All other factors such as safety systems are built into them, all parts are kept in good repair and processes are carefully monitored are relevant precautions.

What mass of salt (nacl) should you add to 1.48 l of water in an ice cream maker to make a solution that freezes at -13.4 ∘c ? assume complete dissociation of the nacl and density of 1.00 g/ml for water?

Answers

Answer is: mass of salt is 311,15 g.
V(H₂O) = 1,48 l · 1000 ml/l = 1480 ml.
m(H₂O) = 1480 g = 1,48 kg.
d(solution) = 1,00 g/ml.
ΔT(solution) = 13,4°C = 13,4 K.
Kf = 1,86 K·kg/mol; cryoscopic constant of water
i(NaCl) = 2; Van 't Hoff factor.
ΔT(solution) = Kf · b · i.
b(NaCl) = 13,4 K ÷ (1,86 K·kg/mol · 2).
b(NaCl) = 3,6 mol/kg.
n(NaCl) = 3,6 mol · 1,48 kg= 5,328 mol.
m(NaCl) = 5,328 mol · 58,4 g/mol = 311,15 g.

Answer:

311.6g NaCl you should add

Explanation:

When you add a solute (NaCl) to solvent (Water), the freezing point of the solution decreases with regard to pure solvent following the equation:

ΔT = Kf × m × i

Where ΔT is change in temperature(From 0°C to -13.4°C), Kf is freezing point depression constant (1.86°C/m for water), m is molality of solution (Moles solute / 1.48 kg solvent -Because 1.48L≡1.48kg; density 1.00g/mL-) and i is Van't Hoff factor (2 for NaCl because in water, NaCl dissociates as Na⁺ and Cl⁻ ions, 2 ions).

Replacing:

13.4°C = 1.86°C/m × moles NaCl / 1.48kg × 2

5.33 = moles NaCl

As molar mass of NaCl is 58.44g/mol, mass in 5.33moles are:

5.33mol NaCl × (58.44g /mol) = 311.6g NaCl you should add

why is the solubility of khp in water greater than many fatty acids with six or more carbons?

Answers

Final answer:

KHP has greater water solubility than fatty acids with long hydrocarbon chains due to its polar carboxylate anion that allows for strong hydrogen bonding with water, whereas fatty acids have a hydrophilic region that becomes less significant relative to the hydrophobic chain as the chain length increases, leading to decreased solubility.

Explanation:

The solubility of potassium hydrogen phthalate (KHP) in water is greater than that of fatty acids with six or more carbons mainly due to the difference in the chemical structure and polarity of the molecules. KHP possesses a highly polar functional group (carboxylate anion) that can form strong hydrogen bonds with water molecules, whereas fatty acids have long hydrocarbon chains that exhibit a hydrophobic character and tend to be less soluble in polar solvents like water. As fatty acids increase in chain length, their solubility in water decreases because the proportion of the nonpolar, hydrophobic hydrocarbon chain relative to the polar carboxyl group becomes larger, resulting in weaker interactions with water molecules.

Fatty acids with long chains, such as those with more than eight carbons, are termed amphiphilic or amphipathic. These substances have both hydrophilic (water-attracting) and hydrophobic (water-repelling) regions, which makes them behave differently in water. For instance, fatty acids with ten or more carbon atoms are nearly insoluble in water but can form a monolayer on the water surface, displaying properties characteristic of surfactants.

The higher solubility of KHP in water compared to fatty acids with six or more carbons is due to its ionic nature and the larger proportion of hydrophobic regions in long-chain fatty acids which decrease their solubility.

The higher solubility of potassium hydrogen phthalate (KHP) in water compared to many fatty acids with six or more carbons is attributed to both its ionic nature and structural differences.

KHP is an ionic compound, meaning it dissociates into ions (potassium and hydrogen phthalate ions) in water.

These ions interact strongly with water molecules through ion-dipole interactions, facilitating its dissolution. In contrast, fatty acids remain as neutral molecules in water, lacking the strong electrostatic interactions that promote solubility.

Additionally, KHP contains hydrophilic groups like the carboxylate group, which further enhance its solubility by forming hydrogen bonds with water molecules.

In contrast, the hydrophobic nature of fatty acids increases with longer carbon chains, leading to decreased solubility in water. The predominance of non-polar hydrocarbon chains in fatty acids reduces their ability to interact favorably with the polar solvent, further lowering their solubility.

Therefore, the combination of KHP's ionic nature and its structural features that promote interactions with water molecules explains why it exhibits higher solubility in water compared to many fatty acids with longer carbon chains

What is a base used in toothpaste?
sorbitol
carrageenan
magnesium hydroxide
sodium lauryl sulfate

Answers

The answer is magnesium hydroxide. Hope it helps! :)

Answer:

The Answer is C. magnesium hydroxide

Explanation:

What is the empirical formula of a molecule containing 65.5% carbon 5.5% hydrogen and 29% oxygen?

Answers

I assume C₃H₃O.

Hope I helped! Tell me if I'm wrong!

Answer: The empirical formula is [tex]C_{3}H_{3}O_1[/tex]  

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of C = 65.5 g

Mass of H = 5.5 g

Mass of O = 29.0 g

Step 1 : convert given masses into moles.

Moles of C =[tex]\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{65.5g}{12g/mole}=5.5moles[/tex]

Moles of H =[tex]\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{5.5g}{1g/mole}=5.5moles[/tex]

Moles of O =[tex]\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{29g}{16g/mole}=1.8moles\approx 1moles[/tex]

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = [tex]\frac{5.5}{1.8}=3[/tex]

For H = [tex]\frac{5.5}{1.8}=3[/tex]

For O =[tex]\frac{1.8}{1.8}=1[/tex]

The ratio of C : H  : O= 3: 3: 1

Hence the empirical formula is [tex]C_{3}H_{3}O_1[/tex]  

Which law states that at constant temperature the pressure of a given amount of gas is inversely proportional to the volume of the gas?

Answers

He observed that volume of a given mass of a gas is inversely proportional to itspressure provided the temperature remains constant. Boyle's law, published in 1662,states that, at constant temperature, the product of the pressure and volume of agiven mass of an ideal gas in a closed system is always constant.

Identify the spectator ions in the following complete ionic equation.
2
K
+
(aq)+
S
2−
(aq)+
Pb
2+
(aq)+2
NO

3
(aq)→PbS(s)+2
K
+
(aq)+2
NO

3
(aq)
Express your answers as ions separated by a comma.



Answers

2K⁺(aq) + S²⁻(aq) + Pb²⁺(aq) + 2NO₃⁻(aq) → PbS(s) + 2K⁺(aq) + 2NO₃⁻(aq)

As you can see on both side of the equation we have K⁺ and NO₃⁻ ions. They do not participate in the reaction, and they are called spectator ions. All the above is an ionic equation.

When we cancel out spectator ions, it remains just ions and molecules involved in the reaction and we get the net ionic equation:

S²⁻(aq) + Pb²⁺(aq) → PbS(s)

What is the mass of platinum that has 4.34x10^21 of atoms?

Answers

Answer is: the mass of platinum is 1.405 grams.
N(Pt) = 4,34·10²¹.
n(Pt) = N(Pt) ÷ Na.
n(Pt) = 4,34·10²¹ ÷ 6,022·10²³ 1/mol.
n(Pt) = 0,0072 mol.
m(Pt) = n(Pt) · M(Pt).
m(Pt) = 0,0072 mol · 195 g/mol.
m(Pt) = 1,405 g.
n - amount of substance.
Na - Avogadro number.

One of the compounds used to increase the octane rating of gasoline is toluene (pictured). suppose 8.30 ml of toluene (d = 0.867 g/ml) is consumed when a sample of gasoline burns in air.

Answers

Missing question: How many grams of oxygen are needed for complete combustion of the toluene?
Chemical reaction: C₇H₈ + 9O₂ → 7CO₂ + 4H₂O.
V(C₇H₈) = 8,30 ml.
d(C₇H₈) = 0,867 g/ml.
n(C₇H₈) = V(C₇H₈) · d(C₇H₈).
m(C₇H₈) = 8,3 ml · 0,867 g/ml.
m(C₇H₈) = 7,19 g.
n(C₇H₈) = m(C₇H₈) ÷ M(C₇H₈).
n(C₇H₈) = 7,19 g ÷ 92,14 g/mol = 0,078 mol.
From chemical reaction: n(C₇H₈) : n(O₂) = 1 : 9.
n(O₂) = 9 · 0,078 mol = 0,702 mol.
m(O₂) = 0,702 mol · 32 g/mol = 22,5 g.

The question is about the octane rating of gasoline and compound toluene that's used as an octane enhancer. An octane rating characterizes fuel's resistance to knock, originally based on a scale with n-heptane at 0 and isooctane at 100. Replacements for toxic enhancers like tetraethyl lead now include options such as toluene and ethanol.

The question involves the concept of octane rating, which is a measure of a fuel's ability to resist knocking or pinging during combustion, used in scoring gasoline. The octane scale was established using n-heptane, with an octane rating of 0, and isooctane (2,2,4-trimethylpentane), with an octane rating of 100. Fuel blends are scored against these standards to determine their octane rating. For example, a mixture of 89% isooctane and 11% n-heptane would have an octane rating of 89, representing an intermediate grade of gasoline.

Enhancers, such as toluene or ethanol, are used to increase the octane rating of gasoline. Toluene, which has a higher octane rating than 100, provides better fuel performance than pure isooctane. Historically, tetraethyl lead was used as an anti-knock agent, but due to its toxicity, it has been phased out and replaced with other substances like MTBE and ethanol.

2C6H5COOH + 15O2 → 14CO2 + 6H2O which of the following options gives the correct product:product ratio?

Answers

Final answer:

The product: product ratio in the provided chemical equation, which represents the combustion of benzene-acetic acid, is 14CO₂:6H₂O. So, for every two molecules of benzene-acetic acid reacted, 14 molecules of carbon dioxide and 6 molecules of water are produced.

Explanation:

The equation provided is a chemical reaction representing the combustion of benzene-acetic acid (C₆H₅COOH). The correct product: product ratio is determined by the stoichiometric coefficients in front of each product. In this selected reaction, for every two molecules of benzene-acetic acid that react with 15 molecules of oxygen, 14 molecules of carbon dioxide (CO₂) and 6 molecules of water (H₂O) are produced.

Therefore, the product: product ratio is 14CO₂:6H₂O. This means for each reaction, you will get more than twice as much carbon dioxide as water. This ratio helps us to understand how much of each product we can expect when the reaction takes place, assuming there are sufficient reactants to complete the reaction.

Learn more about Chemical Reactions here:

https://brainly.com/question/34137415

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Scientists found a fern fossil in some rock layers of the Grand Canyon. They estimated that a sample of one of the fossils originally contained 1000 carbon-14 atoms when it became 'fossilized', and at the time it was tested, it only contained 250 carbon-14 atoms. Look at the chart below. How old is the fossil?

Answers

This question is dealing with the half-life of carbon-14 which can be used to determine the age of a substance according to the following equation:

t = [ln(N/No)/(-ln2)] · t1/2

N = # of carbon-14 atoms presently = 250 atoms
No = # of carbon-14 atoms initially = 1000 atoms
t1/2 = half-life = 5730 years for carbon-14

We can now input all of the information into the formula to find the age of the fossil:

t = [ln (250/1000)/-ln2] x 5730 years

t = 11460 years

The fossil should be found to be roughly 11,460 years old.

What would happen if you placed your product in a drying oven set near 138 synt745?

Answers

our house will be on fire 

Which of the following molecules is polar? CH4, Ch3OH, CO2

Answers

Hello! Ch3OH will be your polar molecule here. Hope it helped.

Hno3(aq)+k2so3(aq)→ express your answer as a chemical equation. identify all of the phases in your answer.

Answers

Answer : The balanced chemical reaction will be,

[tex]2HNO_3(aq)+K_2SO_3(aq)\rightarrow K_2SO_4(aq)+H_2O(l)+2NO_2(g)[/tex]

Explanation :

Balanced chemical equation : It is defined as the number of atoms of individual elements present on reactant side must be equal to the product side.

When the nitric acid react with potassium sulfite to give potassium sulfate, water and nitrogen dioxide.

Thus, the balanced chemical reaction will be,

[tex]2HNO_3(aq)+K_2SO_3(aq)\rightarrow K_2SO_4(aq)+H_2O(l)+2NO_2(g)[/tex]

The balanced chemical equation is as follows:

[tex]\boxed{{\text{2HN}}{{\text{O}}_{\text{3}}}\left( {aq} \right) + {{\text{K}}_2}{\text{S}}{{\text{O}}_3}\left( {aq} \right) \to {{\text{K}}_2}{\text{S}}{{\text{O}}_4}\left( {aq} \right) + 2{\text{N}}{{\text{O}}_{\text{2}}}\left( g \right) + {{\text{H}}_{\text{2}}}{\text{O}}\left( l \right)}[/tex]

The phase of [tex]{{\mathbf{K}}_{\mathbf{2}}}{\mathbf{S}}{{\mathbf{O}}_{\mathbf{4}}}[/tex] is [tex]\boxed{{\mathbf{aqueous}}}[/tex], [tex]{\mathbf{N}}{{\mathbf{O}}_{\mathbf{2}}}[/tex] is [tex]\boxed{{\mathbf{gas}}}[/tex] and [tex]{{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}[/tex] is [tex]\boxed{{\mathbf{liquid}}}[/tex].

Further Explanation:

The chemical reaction that contains equal number of atoms of the different elements in the reactant as well as in the product side is known as balanced chemical reaction. The chemical equation is required to be balanced to follow the Law of the conservation of mass.

The steps to balance a chemical reaction are as follows:  

Step 1: Complete the reaction and write the unbalanced symbol equation.

In the given reaction, [tex]{\text{HN}}{{\text{O}}_{\text{3}}}[/tex] reacts with [tex]{{\text{K}}_2}{\text{S}}{{\text{O}}_3}[/tex] to form [tex]{{\text{K}}_2}{\text{S}}{{\text{O}}_4}[/tex], [tex]{\text{N}}{{\text{O}}_{\text{2}}}[/tex] and [tex]{{\text{H}}_{\text{2}}}{\text{O}}[/tex]. The physical state of [tex]{{\text{K}}_2}{\text{S}}{{\text{O}}_4}[/tex] is aqueous, [tex]{\text{N}}{{\text{O}}_{\text{2}}}[/tex] is gas and [tex]{{\text{H}}_{\text{2}}}{\text{O}}[/tex] is liquid. The unbalanced chemical equation is as follows:

[tex]{\text{HN}}{{\text{O}}_{\text{3}}}\left( {aq} \right) + {{\text{K}}_2}{\text{S}}{{\text{O}}_3}\left( {aq} \right) \to {{\text{K}}_2}{\text{S}}{{\text{O}}_4}\left( {aq} \right) + {\text{N}}{{\text{O}}_{\text{2}}}\left( g \right) + {{\text{H}}_{\text{2}}}{\text{O}}\left( l \right)[/tex]

Step 2: Then we write the number of atoms of all the different elements that are present in a chemical reaction in the reactant side and product side separately.(Refer table in the attached image)

On the reactant side,  

Number of hydrogen atoms is 1.

Number of nitrogen atoms is 1.

Number of oxygen atoms is 6.

Number of potassium atoms is 2.

Number of sulfur atoms is 1.

On the product side,  

Number of hydrogen atoms is 1.

Number of nitrogen atoms is 1.

Number of oxygen atoms is 6.

Number of potassium atoms is 2.

Number of sulfur atoms is 1.

Step 3: Initially, we try to balance the number of other atoms of elements except for carbon, oxygen, and hydrogen by multiplying with some number on any side. The other elements except oxygen and hydrogen are balanced.

Step 4: After this we balance the number of atoms of oxygen followed by hydrogen atoms. To balance the number of atoms of oxygen and hydrogen, we have to multiply [tex]{\text{HN}}{{\text{O}}_{\text{3}}}[/tex] by 2, [tex]{\text{N}}{{\text{O}}_{\text{2}}}[/tex] by 2. The chemical equation is as follows:

[tex]{\text{2HN}}{{\text{O}}_{\text{3}}}\left( {aq} \right) + {{\text{K}}_2}{\text{S}}{{\text{O}}_3}\left( {aq} \right) \to {{\text{K}}_2}{\text{S}}{{\text{O}}_4}\left( {aq} \right) + 2{\text{N}}{{\text{O}}_{\text{2}}}\left( g \right) + {{\text{H}}_{\text{2}}}{\text{O}}\left( l \right)[/tex]

Step 5: Finally, we check the number of atoms of each element on both the sides. If the number is same then the chemical equation is balanced. The balanced chemical equation is as follows:

[tex]{\text{HN}}{{\text{O}}_{\text{3}}}\left( {aq} \right) + {{\text{K}}_2}{\text{S}}{{\text{O}}_3}\left( {aq} \right) \to {{\text{K}}_2}{\text{S}}{{\text{O}}_4}\left( {aq} \right) + {\text{N}}{{\text{O}}_{\text{2}}}\left( g \right) + {{\text{H}}_{\text{2}}}{\text{O}}\left( l \right)[/tex]

Learn more:

1.  Balanced chemical equation https://brainly.com/question/1405182

2. How to calculate moles of the base in given volume https://brainly.com/question/4283309

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Chemical reaction and equation

Keywords: Balancing, HNO3, K2SO4, K2SO3, NO2, H2O, phases, physical state, solid, liquid, gas, aqueous, law of conservation of mass.

A 2,000g of C-14 is left to decay radioactively. The half-life of Carbon-14 is approximately 5,700 years. What percentage of the sample will remain after 17,100 years?

Answers

Answer is: 12,6% (1/8) percentage of the sample will remain.
c₀ - initial amount of C-14.
c - amount of C-14 remaining at time.
t = 5700 y.
First calculate the radioactive decay rate constant λ:
λ = 0,693 ÷ t = 0,693 ÷ 5700 y = 0,000121 1/y = 1,21·10⁻⁴ y.
c = c₀·e∧-λ·t.
c = 2000 · e∧-(0,000121 1/y · 17100 y).
c = 252 g.
ω = 252 g ÷ 2000 g = 0,126 = 12,6%.


1/8 when using usatestprep

Which statement is correct regarding the rate of the reaction below? 3A + B yields 4X + 2Y

Answers

I added a image with the complete question as well as its choices.

Answer:
The rate of formation of X is 4 times the rate of disappearance of B

Explanation:
The given is:
3A + B .............> 4X + 2Y
From this, we can see that the ratio between the reactant B and the product X is 1 :4.
This means that for every reacting mole B, 4 moles of product X are formed, which means that the ratio between the disappearance of B and the formation of X is 1:4

Hope this helps :)

Determine the total number of valence electrons in the arsenite ion, aso33−.

Answers

In case you're in hurry:
Ans: 26 valence electrons

Explanation:
To find the valence electrons, we need to add the valence electrons of the individual atom in the compound. Therefore, let us divide this question into 3 parts.

1) What is the number of valence electrons of Arsenic (As)?
2) What is the number of valence electrons of Oxygen (O)?
3) What is the total number of valence electrons of [tex]AsO_{3}^{3-}[/tex]

1.
The number of valence electrons of Arsenic(As) = 5

2.
The number of valence electrons of Oxygen (O) = 6

3.

Since there are 3 atoms of Oxygen, and 3 extra electrons are also present in the shape of "3-", as it is an ion, therefore,

The total number of valence electrons of [tex]AsO_{3}^{3-}[/tex] = 5 + 6 * 3 + 3 = 26 valence electrons.

Ans: The total number of valence electrons in 
[tex]AsO_{3}^{3-}[/tex] = 26.

-i

Final answer:

The arsenite ion (AsO₃₃⁻) has a total of 26 valence electrons, calculated by adding the valence electrons of arsenic and oxygen and then adding three more electrons to account for the ion's 3− charge.

Explanation:

To determine the total number of valence electrons in the arsenite ion (AsO₃₃⁻), we first count the valence electrons of each atom and then adjust for the charge on the ion. Arsenic (As) is in group 15 of the periodic table and has 5 valence electrons. Each oxygen (O) atom, being in group 16, has 6 valence electrons. There are three oxygen atoms, so:

Arsenic: 1 As atom × 5 valence electrons = 5 valence electronsOxygen: 3 O atoms × 6 valence electrons = 18 valence electrons

Adding these together: 5 (As) + 18 (O) = 23 valence electrons. Since the arsenite ion has a 3− charge, we add three electrons to account for the negative charge. So, the total number of valence electrons for AsO₃₃⁻ is:

23 (from atoms) + 3 (from charge) = 26 valence electrons

Explain how archimedes might have used the concept of density to determine whether the king's crown was pure gold. (density of gold is known to be 19.32 g/cm3 )

Answers

In theory this should work.

If you take any shape of gold and put it in a container of water (the water being filled right to the top) and measure the overflow of water you get the volume of the object.

If you then measure its mass, you can get the density with this formula
Density = mass of object made of gold / the amount of water overflow 

Given the crude methods Archimedes had at his disposal, any answer between 15 and 20 for the density would have been acceptable. If the object has any other impurities in it, the density would fall well below 19 or even 15 if there were enough impurities in it.

The atomic mass of gold is 197 g/mole, and the density of gold is 19.3 g/cm3. using this information along with the measured value of young's modulus, calculate the speed of sound in gold.

Answers

The speed of sound is given by the formula
Speed of sound = square root (Young's Modulus/density)
Young's modulus for gold = 78 GPa which is 7.8 * 10^10 Pa
Speed of sound = (7.8 * 10^10 / 19.3 ) = sqrt (4.04 * 10^9 )
Speed of sound = 6.36 * 10^4 m/s <<<=== answer.

Select the correct location on the diagram.
Ocean currents affect the climate of the landmasses they come near. Which of the following locations most likely experiences a warmer climate due to a nearby ocean current than it otherwise would? Choose the correct red circle on the diagram.

Please help thanks so much!!!

Answers

the answer is Europe

In an ecosystem, Europe is the country on map which will experience  a warmer climate due to a nearby ocean current than it otherwise would.

What is an ecosystem?

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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What process forms high non-volcanic mountain ranges?

A. One tectonic plate is splitting apart into two plates.

B. Two tectonic plates are colliding and pushing together.

C.One tectonic plate is sliding past another tectonic plate.

D. Two tectonic plates are colliding and one is sliding under the other.

Answers

D. Two tectonic plates are colliding and one is sliding under the other.

The answer is D. Two tectonic plates are colliding and one is sliding under the other

Classify methanol (ch3oh) as a strong electrolyte, a weak electrolyte, or a nonelectrolyte.

Answers

Explanation:

A strong electrolyte is defined as the one which contains solute that completely dissociates into ions. Strong acids will lead to the formation of strong electrolytes.

For example, HCl will make a strong electrolyte.

Whereas a weak electrolyte is defined as the one which contains solute that slightly dissociates into ions.

For example, [tex]CH_{3}OH[/tex] is a weak electrolyte.

This is because methanol when dissolved in water does not completely dissociates into ions. Therefore, very less number of ions are present into the solution and as a result, the solution will not be able to conduct electricity.

Also, oxygen atom being more electronegative in nature will hold the hydrogen atom of O-H more tightly, Hence, very less or no hydrogen ions will not present into the solution.

Therefore, we can conclude that methanol is a weak electrolyte.

Final answer:

Methanol, or CH3OH, is classified as a nonelectrolyte because it does not ionize or produce ions when dissolved in water, and can't therefore conduct electricity. In contrast, substances that do dissolve in water to produce ions, and can conduct electricity are electrolytes, either strong or weak.

Explanation:

The student question classifies methanol (CH3OH) as a strong electrolyte, a weak electrolyte, or a nonelectrolyte. Methanol would be classified as a nonelectrolyte.

Electrolytes are substances that when dissolved in water, they produce ions. If the process is almost 100% efficient, the substance can be considered a strong electrolyte. If only a small percentage of the substance produces ions, it is a weak electrolyte. However, substances that do not produce ions when dissolved in water are called nonelectrolytes.

Methanol, in this case, does not ionize when dissolved in water, therefore, doesn't produce ions. This classifies it as a nonelectrolyte. This can be further confirmed through a conductance test. Electrolytes can conduct electricity when dissolved in water due to the presence of ions. Since methanol doesn't produce ions when dissolved, it won't conduct electricity, substantiating its classification as a nonelectrolyte.

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