What solute can be found in the greatest amount in urine?

Answer:

B.

Explanation:

gas equation is PV = nRT

R = PV/nT

Final answer:

The ideal gas constant R is calculated from the ideal gas law PV = nRT as R = (PV)/(nT) by dividing both sides of the equation by n and T. THus, option B is correct.

Explanation:

The ideal gas constant, denoted as R, is a factor in the ideal gas law, which is expressed as PV = nRT. To find the value of R, we can rearrange this equation to solve for R. Therefore, the correct equation to calculate R using the ideal gas law would be R = (PV)/(nT). This rearrangement comes from simply dividing both sides of the ideal gas law by n and T to isolate R.

Answer:

The answer to your question is Na₂S, if you need to choices the other one is BaS

Explanation:

As a general rule, all the compounds that have sulfur, are insoluble in water, but the are some exceptions.

-Molecules with ammonia

-If the molecule has alkali metals is soluble

-If the molecule has Ca⁺², Sr⁺² and Ba⁺² is soluble in water.

From the compounds given, following the rules, the compound that is soluble in is Na₂S and perhaps BaS.

Among PbS, BaS, Na2S, and Fe2S3, Na2S is the compound that is soluble in water, as sodium is a Group I element and its sulfide does not follow the general rule of insolubility for sulfides.

The question concerns the solubility of compounds in water, which is a topic in Chemistry. Among the compounds listed (PbS, BaS, Na2S, Fe2S3), Na2S (sodium sulfide) is the one that is soluble in water. This is because Na+ is a Group I element, and as per solubility rules, sulfides are generally insoluble except for those of Group I elements and also calcium, strontium, and barium to a lesser extent. Despite barium being part of the exception, BaS tends to hydrolyze and form Ba(OH)2 and H2S, making it not truly soluble in water for practical purposes. On the other hand, PbS (lead sulfide), Fe2S3 (iron(III) sulfide), and BaS (barium sulfide) are typically insoluble due to their placement on the periodic table as transition metals or heavy metals, which generally form insoluble sulfides.

Answer:

In order: particles, pressure, temperature, and volume.

Explanation:

The mole gives a number of atoms or molecules in a substance. mmHg is millimeters of mercury and that is a type of unit of pressure. Celcius is a unit of temperature so it is the temperature. milliliter is a measurement of volume.

Answer:

Explanation:

find the solution below.

Phosphorous acid (H3PO3), a diprotic oxyacid, has points of pH change that will happen at equimolar points of the titration with a base of equal concentration (KOH). The pH will vary depending upon the pKa values

The subject in question pertains to Chemistry, specifically acid-base titrations. Here Phosphorous acid ( H3PO3 ), a diprotic oxyacid , is being titrated with an equal concentration base which is Potassium Hydroxide (KOH). A diprotic acid is an acid that can donate two protons per molecule.

In the given scenario, since the concentrations of the acid and the base are the same, the points of pH changes will happen at the equimolar points of the titration. Thus, the first equivalence point will be when 50.0 mL of KOH is added, and the second equivalence point will be at 100.0 mL of KOH.

How much the pH changes after the addition of each portion of KOH depends on the pKa values. After 50.0 mL of KOH (but before 100.0 mL), the major species is HPO3^2- (pKa2 = 6.7). So, the pH should be approximately equal to this value. After 100.0 mL of KOH, the phosphorous acid has been fully neutralized, so the solution now contains mostly OH-, and the pH should be high, depending on how much extra OH- is in solution.

https://brainly.com/question/34855887

#SPJ6

Answer:

31.5 mL of a 2.50M NaOH solution

Explanation:

Molarity (M) is an unit of concentration defined as moles of solute (In this case, NaOH), per liter of solvent. That is:

Molarity = moles solute / Liter solvent

If you want to make 525mL (0.525L) of a 0.150M of NaOH, you need:

0.525L × (0.150mol / L) = 0.07875 moles of NaOH

If you want to obtain these moles from a 2.50M NaOH solution:

0.07875mol NaOH × (1L / 2.50M) = 0.0315L = 31.5 mL of a 2.50M NaOH solution

Answer:

The correct answer is 31.5 ml

Explanation:

We have to dilute the more concentrated solution (2.50 M) to obtain a solution with a molarity of 0.150 M. We have the following data:

Initial concentration = Ci = 2.50 M

Final concentration = Cf = 0.150 M

Final volume = Vf = 525 ml

We consider the final and initial states and use the following expression to calculate the initial volume (Vi) in ml:

Ci x Vi = Cf x Vf

Vi= (Cf x Vf)/Ci = (0.150 M X 525 ml)/2.50 M = 31.5 ml

Answer:

P2≈393.609Kpa so I think the answer is 394 kPa

Explanation:

PV=mRT Ideal Gas Law

m and R are constant because they dont change for the problem. That means

PV/T=mR = constant

so P1*V1/T1=P2*V2/T2 and note that the temperatures are in absolute temperatures (Kelvin) because you can't divide by zero.

So P2 = P1*V1*T2/(V2*T1) = 101325 Pa * 700 mL * 303K/(200 mL*273K)

P2 = 393609 Pa

Answer:

3.94 x 10⁵ pascals

Explanation:

combined gas law problem

P₁V₁/T₁ =  P₂V₂/T₂ => P₂ = P₁(V₂/V₁)(T₁2T₁)

P₁ = 1 atm at STP       P₂ = unknown

V₁ = 700 ml               V₂ = 200 ml

T₁ = 0°C = 273K        T₂ = 30°C = 303K

P₂ =  1atm(700ml/200ml)(303K/273K) = 3.89 atm

3.89 atm = 3.89 atm(1.01 x 10⁵Pa/atm) = 3.94 x 10⁵ pascals

Answer:

The percent yield of the reaction is 90.9%.

Explanation:

Mass of hydrogen gas = 24.2 g

Moles of hydrogen = [tex]\frac{24.2 g}{2g/mol}=12.1 mol[/tex]

[tex]2H_2+O_2\rightarrow 2H_2O[/tex]

According to reaction, 2 moles of hydrogen gas gives 2 moles of water , then 12.1  moles of hydrogen will give:

[tex]\frac{2}{2}\times 12.1mol=12.1mol[/tex]  water

Mass of 12.1 moles of water

= 12.1 mol × 18 g/mol = 217.8 g

Theoretical yield of water = 217.8 g

Experimental yield of water = 198 g

The percentage yield of reaction:

[tex]=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100[/tex]

[tex]=\frac{198 g}{217.8 g}\times 100=90.9\%[/tex]

The percent yield of the reaction is 90.9%.

Answer:NaCl

Explanation:

Final answer:

The chemical formula for sodium chloride is NaCl. It is composed of sodium cations and chloride anions in a 1:1 ratio.

Explanation:

The chemical formula for sodium chloride is NaCl. Sodium chloride is an ionic compound composed of sodium cations, Nat, and chloride anions, Cl-, combined in a 1:1 ratio. The formula mass for sodium chloride is calculated as 58.44 amu.

Increasing temperature increases the reaction rate by increasing the speed of particles. Although increasing concentration and increasing surface area can also speed up a reaction, they do so by increasing the probability of collisions, not particle speed.

The three factors you have listed, namely, increasing concentration, increasing temperature, and increasing surface area, are indeed factors that can increase the rate of a chemical reaction. However, if we're specifically looking at the factor that increases the reaction rate by increasing the particle speed, then the answer would be increasing temperature.

Increasing the temperature causes particles to move faster, and because they're moving faster, they're more likely to collide with each other and react.

On the other hand, increasing concentration increases the number of reactant particles in a given volume, hence, increasing the chance of collisions. Whereas, increasing the surface area of solid reactants increases the area available for collisions to occur. Both will result in a higher rate of reaction, but not by specifically increasing particle speed.

https://brainly.com/question/13440548

#SPJ3

Answer:

+125.4 KJmol-1

Explanation:

∆H C4H10(g) = -2877.6kJ/mol

∆H C(s)=-393.5kJ/mol

∆H H2(g) = -285.8

∆H reaction= ∆Hproducts - ∆H reactants

∆H reaction= (-2877.6kJ/mol) - [4(-393.5kJ/mol) +5(-285.8)]

∆H reaction= +125.4 KJmol-1

No where.. unless there are places that have very heavy rain fall and pollution at the same time like New York (sometimes). A place where it is not really a problem could be like Hawaii, were there is less industrial pollution getting released into the air. I hope this helps!! lol

Answer:

China and india is more of the problem and the part is least of the problem is North Eastern United States, Eastern Europe

Explanation:

Answer:

NaNO3

Explanation:

The species where nitrogen has the highest oxidation number is NaNO3, where nitrogen has an oxidation number of +5.

The species where nitrogen has the highest oxidation number is NaNO3. In this compound, the oxidation number of nitrogen is +5. We can determine this by understanding that the oxidation number for oxygen is usually -2, and for sodium it is usually +1. Therefore, to balance the charge in the compound NaNO3(sodium nitrate), nitrogen must have an oxidation state of +5.

https://brainly.com/question/29100691

#SPJ6

This is an incomplete question, here is a complete question.

For each reaction, identify the Bronsted-Lowry acid, the Bronsted-Lowry base, the conjugate acid, and the conjugate base.

[tex]HBr(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+Br^-(aq)[/tex]

Express your answers as a chemical expressions. Enter your answers in order given in the question separated by commas.

Answer : The given equilibrium reaction will be,

[tex]HBr(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+Br^-(aq)[/tex]

Acid            Base      Conjugate    Conjugate

                                       acid             base

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

The given equilibrium reaction will be,

[tex]HBr(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+Br^-(aq)[/tex]

Acid            Base      Conjugate    Conjugate

                                       acid             base

In this reaction, [tex]HBr[/tex] is an acid that donate a proton or hydrogen to [tex]H_2O[/tex] base and it forms [tex]Br^-[/tex] and [tex]H_3O^+[/tex] are conjugate base and acid respectively.

The formula HBr(aq)+H2O(l)→H3O+(aq)+Br−(aq) represents a Brønsted-Lowry Acid-Base reaction where HBr donates a proton to H2O, forming H3O+ and Br-. This is an acid-base reaction in an aqueous solution.

The provided chemical reaction between Hydrobromic acid and water is a characteristic of Brønsted-Lowry Acid-Base reaction. In this reaction, HBr (Hydrobromic acid) donates a proton (H+) to H2O (water), which is a proton acceptor. This process results in the formation of Hydronium Ion (H3O+) and Bromide Ion (Br-).

Expressing the reaction step by step, we start with HBr(aq)+H2O(l), wherein the Hydrobromic acid dissociates into a proton (H+) and a bromide ion (Br-). Similarly, water dissociates into Hydronium Ion (H3O+). Hence, HBr(aq)+H2O(l)→H3O+(aq)+Br−(aq). This is an example of an acid-base reaction in aqueous solutions.

https://brainly.com/question/15209937

#SPJ6

Question:

1 State what happens to the average kinetic energy of the gas molecules if the cabin

temperature decreases.

2 Show a numerical setup for calculating the pressure in the submarine cabin if the cabin

temperature changes to 293 K.

3 Determine the number of moles of CO₂(g) in the submarine cabin at which the air

becomes unsafe to breathe. The gram-formula mass of CO₂ is 44.0 g/mol.

4 Convert the original air pressure in the cabin of the submarine to atmospheres.

Answer:

1) The average kinetic energy of the gas molecules will decrease

2) P₂ = 293 K × 116 kPa/312 K = 108.94 kPa

3) 49 mols

4) 116 kPa  = 1.145 atm

Explanation:

(1) When the cabin temperature decreases, the pressure within the cabin will decrease because the average kinetic energy of the gas molecules will decrease. That is the gas particles will have a lower speed.

(2) P₁V₁/T₁ = V₂P₂/T₂

Since the volume is constant we have

116 kPa/312 K = P₂/293 K

P₂ = 293 K × 116 kPa/312 K = 108.94 kPa

(3)  

Since CO₂ is 44.0 g/mol, we have

2156/44 = 49 mols

(4) 1 atm = 101325 Pa

Therefore 116 kPa = 1/101325 ×116000 = 1.145 atm

Answer:

1) The average kinetic energy of the gas molecules will decrease

2) P₂ = 293 K × 116 kPa/312 K = 108.94 kPa

3) 49 mols

4) 116 kPa = 1.145 atm

Explanation:

Answer: Copper

Explanation:

Just took it on Edgen

Answer:

copper

Explanation:

A 1.0-liter aqueous solution with a pH of 5.0 contains 100 times more hydronium ions than a solution with a pH of 7.0, since the pH scale is logarithmic and a change of 1 unit corresponds to a tenfold change in ion concentration.

The question concerns the comparison of hydronium ion concentrations in aqueous solutions with different pH levels. To analyze the difference between a pH of 7.0 and a pH of 5.0, we need to understand that the pH scale is logarithmic; a change of 1 unit on the pH scale corresponds to a tenfold change in hydronium ion concentration.

For a solution with a pH of 7.0, which is neutral, the concentration of hydronium ions is 1.0 × 10-7 M. An acidic solution with a pH of 5.0 has a higher concentration of hydronium ions because each unit decrease in the pH value corresponds to a tenfold increase in [H3O+]. So, moving from a pH of 7.0 to a pH of 5.0 (a difference of 2 pH units), the hydronium ion concentration increases by a factor of 10 for each unit decrease in the pH. This means that a pH of 5.0 represents a hydronium ion concentration that is 10 × 10 or 100 times greater than that of a solution with a pH of 7.0.

Therefore, compared to a 1.0-liter aqueous solution with a pH of 7.0, a 1.0-liter aqueous solution with a pH of 5.0 contains 100 times more hydronium ions. Hydroxide ions are not directly mentioned in this comparison, but if they were, their concentration would be 100 times less, as they are inversely related to the concentration of hydronium ions.

Answer:

Explosive, Propellant and Semiconductor

Explanation:

Answer:

The final temperature would be 308.7 K or 35.7 °C

Explanation:

Step 1: Data given

The initial pressure = 1200 torr

The pressure is reduced to 760 torr

The initial volume = 0.650 L

The increased volume is 1.1 L

The initial temperature is 15 °C = 288 K

Step 2: Calculate the new temperature

(P1*V1)/T1 = (P2*V2)/T2

⇒with P1 = the initial pressure = 1200 torr

⇒with V1 = the initial volume = 0.650 L

⇒with T1 = initial temperature is 15 °C = 288 K

⇒with P2 = the reduced pressure = 760 torr

⇒with V2 = the increased volume = 1.1 L

⇒with T2 = the final temperature = TO BE DETERMINED

(1200 torr * 0.650 L) / 288 K = (760 torr * 1.1 L) /  T2

T2 = (760 * 1.1 * 288) / (1200 * 0.650)

T2 = 308.7 K

The final temperature would be 308.7 K or 35.7 °C

Answer:

-272.99K = 0.0032°C

Explanation:

Applying (P1V1)/T1 = (P2V2)/T2

(1200×0.65)/288 = (760 × 1.1)/T2

Simplify

T2 = 0.0032°C

It depends on whether the system is endothermic or exothermic. If it is endothermic, then adding heat to the system will cause the equilibrium to shift right. Additionally, the k value will increase. Likewise, if the reaction is exothermic, adding heat will cause the equilibrium to shift left. Increasing temperature in an exothermic reaction cause k to decrease.

Le Châtelier's principle explains how a system at equilibrium responds to added heat by shifting to consume the heat, helping predict changes in a chemical equilibrium due to temperature disturbances.

Le Châtelier's principle states that if heat is added to a system at equilibrium, the system will shift to consume the heat. For example, in a liquid-vapor equilibrium, adding heat will cause the system to convert liquid to vapor, increasing the equilibrium vapor pressure.

When a system at equilibrium is disturbed by a change in temperature, it will respond in a way to counteract the disturbance, following Le Châtelier's principle. This principle helps predict how changing conditions like temperature, pressure, or concentration can affect a chemical equilibrium.

Shifting Equilibria: Systems at equilibrium can be disturbed by changes in temperature, concentration, volume, or pressure; Le Châtelier's principle describes how the system will respond to these disturbances to establish a new equilibrium.

The given question is incomplete. The complete question is :

Bonding between two elements of equal electronegativity would be

a.100% covalent

b.50% ionic

c. metallic in character

d. primarily ionic

Answer: a. 100% covalent

Explanation:

An ionic bond is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element or the metal and the element which accepts the electrons is known as electronegative element or non metal.

A covalent bond is formed when an element shares its valence electron with another element. This bond is formed between two non metals. When the two non metals have equal electronegativities, the bond is called as non polar covalent.

Metallic bonding is the type of chemical bonding occurs between the atoms of a metals.In this type of bonding arises due to electrostatic interaction between the electron cloud of de-localized electrons with positively charges metal ions.

Final answer:

A bond between two elements with equal electronegativity is termed a pure or nonpolar covalent bond, characterized by equal sharing of electrons without charge separation on the molecule.

Explanation:

Bonding between two elements of equal electronegativity results in a pure covalent bond, also known as a nonpolar covalent bond. This type of bond forms when electrons are shared equally between the atoms. Since there is no significant difference in electronegativity, there are no stable regions of net negative or positive charge on the molecule's surface, meaning the bond is nonpolar.

Answer:

A is the answer.

Explanation:

Physical changes do not change the substance's composition but just the outside qualities. However, chemical changes change the composition of the substance and it's chemical properties.

Answer:

A

Explanation:

Answer:  The mole ratio of atoms or ions in the compound

Explanation:

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass. It can be decomposed into simpler constituents using chemical reactions. Example: water with chemicl formula [tex]H_2O[/tex]

The subscript 2 in [tex]H_2O[/tex] represents that the ratio of hydrogen atom is twice that of oxygen atom.

Thus SUBSCRIPTS in a compound represent the mole ratio of atoms or ions in the compound

Answer:

V1P1=V2P2

155(22L)=P(10L0

P=341kPg

Explanation:

The following format is copied directly from your notes for how to solve these!!!

1) Analyze problem statement to find knowns and unknowns for each gas variable

V1 = 22.0 L P1 = 155.0 kPa T1 = T2 n = constant (same sample of gas)

V2= 10.0 L P2 = ? kPa T2 = T1 temperature is constant

2) Decide which of the gas laws to use and write its formula.

Only P and V are given, so Boyle's law is used P1V1 = P2V2

3) Change any temperature values to Kelvin (if T is needed) not needed

4) Plug in the knowns - INCLUDING UNITS!!

P1V1 = P2V2

(155.0 kPa) (22.0 L) = P2 (10.0 L)

P2 = (155.0 kPa)(22.0 L) = 341 kPa

(10.0 L)The following format is copied directly from your notes for how to solve these!!!

1) Analyze problem statement to find knowns and unknowns for each gas variable

V1 = 22.0 L P1 = 155.0 kPa T1 = T2 n = constant (same sample of gas)

V2= 10.0 L P2 = ? kPa T2 = T1 temperature is constant

2) Decide which of the gas laws to use and write its formula.

Only P and V are given, so Boyle's law is used P1V1 = P2V2

3) Change any temperature values to Kelvin (if T is needed) not needed

4) Plug in the knowns - INCLUDING UNITS!!

P1V1 = P2V2

(155.0 kPa) (22.0 L) = P2 (10.0 L)

P2 = (155.0 kPa)(22.0 L) = 341 kPa

(10.0 L)

Final answer:

By applying Boyle's law, which states the inverse relationship between volume and pressure at constant temperature, we can calculate the new pressure of a gas when its volume changes. The new pressure is of 341.0 kPa.

Explanation:

The question provided discusses the behavior of gases under different conditions of pressure, volume, and temperature. This is a chemistry concept known as Boyle's law when temperature is constant, or Gay-Lussac's law when pressure is constant, or the combined gas law when neither are constant.

With the information given, we are asked to calculate the new volume or pressure of a gas sample when one of the other variables changes, while holding the other constant.

If the temperature remains constant (Boyle's law), the pressure of a gas is inversely proportional to its volume (P1V1 = P2V2). In the first example, to find the new pressure when the volume decreases from 22.0 L to 10.0 L, while starting at 155.0 kPa, the formula is rearranged to P2 = (P1V1) / V2.

Thus the new pressure is (155.0 kPa × 22.0 L) / 10.0 L, resulting in a new pressure of 341.0 kPa.

Answer:

Classify the following mixtures as homogeneous or heterogeneous

a. A bucket with balls of different color  heterogeneous mixture

b. Beach sand homogeneous mixture

c. A sample of salt with water homogeneous mixture

d. Air homogeneous mixture

e. Blood homogeneous mixture

f. A fruit salad  heterogeneous mixture

g. Ice cubes with water  heterogeneous mixture

h. Window glass homogeneous mixture

i. Pond water homogeneous mixture

j. The soup  heterogeneous mixture

l. Wood homogeneous mixture

m. Gasoline homogeneous mixture

n. Powder homogeneous mixture

o. Orange heterogeneous mixture

p. Cement homogeneous mixture

q. Engine oil homogeneous mixture

r. Cotton homogeneous mixture

s. Paper homogeneous mixture

t. Oil and Vinegar  heterogeneous mixture

k. Smog homogeneous mixture

Explanation:

In homogeneous mixtures, the elements are united in such a way that they are not distinguishable, while in heterogeneous mixtures, these are observable.

The given reaction is a synthesis reaction which will generate approximately 45.5g of NaCl, following conversion from moles to grams.

The reaction in question is a synthesis reaction between sodium (Na) and chlorine (Cl_2) to produce sodium chloride (NaCl). The balanced chemical equation for this reaction is 2Na + Cl_2 → 2NaCl, which tells us that the ratio of moles of sodium to moles of sodium chloride is 1:1. Thus, the moles of sodium is equal to the moles of sodium chloride produced.

To calculate this, you would first need to convert grams of sodium to moles using its molar mass (approximately 23 g/mol). Therefore, 18.0 g of Na equals about 0.78 moles. Since the ratio of Na to NaCl in the reaction is 1:1, this means that the reaction would yield 0.78 moles of NaCl.

To convert this to grams, you multiply by the molar mass of NaCl (approximately 58.44 g/mol). So, approximately 45.5g of NaCl would be produced from 18.0 g of Na and sufficient Cl_2

https://brainly.com/question/25004705

#SPJ12

Answer:

I, Br, Cl, F

Lowest --> Highest

Fluorine has the highest ionization energy due to less electron shielding compared to the other elements in the list.

Answer:

Your answer is number A.

Why is it that answer:

When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water.

Ice is less dense than water due to the open crystalline structure formed by hydrogen bonds when water freezes, resulting in gaps between molecules and an increased volume.

Ice is less dense than water because of the hydrogen bonds that form when water freezes. At lower temperatures, water molecules slow down sufficiently to allow hydrogen bonds to hold the water molecules in a crystalline lattice. Ice crystallizes with an open structure, creating gaps between the molecules, which increases the volume of ice compared to liquid water. This unique molecular arrangement in ice causes it to have a density of approximately 0.92 g/cm³, compared to fresh water's density of 1.0 g/cm³. The expansion of ice relative to liquid water is critical as it allows ice to float, forming a surface layer that insulates the water below and enables aquatic life to survive during cold seasons.