What are silicates? what are silicates? silicates are extended arrays of silicon and nitrogen. they are the most common network covalent atomic solids. silicates are extended arrays of sulfur and oxygen. they are the most common network covalent atomic solids. silicates are extended arrays of silicon and oxygen. they are the most common network covalent atomic solids. silicates are extended arrays of silicon and oxygen. they are the least common network ionic atomic solids?

Answers

Answer 1
The answer is b I think
Answer 2

Answer:

silicates are extended arrays of silicon and oxygen.  

Explanation:

By definition, a silicate is a compound consisting of the chemical elements silicon (Si) and oxygen (O), derived from salicylic acid, which may be a salt or an ester. Of this group stand out the silicates formed by the alkali metals, constituent elements of Family IA of the periodic table, which are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium. (Fr), as these are water soluble and have various applications in industry and the laboratory. This list excludes the last two elements mentioned, due to their high molecular weight and their radioactivity. It is also relevant to report that salicylic acid is one of the derivatives of the second most abundant chemical element in the earth's crust, of the order of 27%, silicon (Si).


Related Questions

Which class of compounds is responsible for the scents and flavors of many fruits? amides amines ethers esters

Answers

Esters are responsible for the scents and flavors of many fruits.

Answer: Esters for Plato

Explanation:

Which halocarbon has the highest boiling point? 2-dichloropropane 2-chloropropane 1-chloropropane 1,2,3-trichloropropane?

Answers

1,2,3-trichloropropane

Answer:1,2,3-trichloropropane

Explanation:

Which of the following processes is exothermic? which of the following processes is exothermic? the chemical reaction in a "cold pack" often used to treat injuries the vaporization of water?

Answers

Given the choices;
A) A candle flame
B) Baking bread
C) The chemical reaction in a "cold pack" often used to treat injuries
D) The vaporization of water
The correct answer would be A, a candle flame.
An exothermic reaction is a type of reaction where energy is lost from the system to the surroundings in form of heat and light energy. The opposite of exothermic reaction is the endothermic reaction where energy is absorbed from the surrounding to the system.

Answer:

Among the processes given i.e. Burning of candle, baking of bread, the reaction in a cold pack, and vaporization of water. The burning of the candle is an exothermic reaction.

Explanation:

The exothermic reactions are the ones in which there is an emission of energy.

In the baking of bread, the process grasps the energy and utilized it for the baking process. This is the form of an endothermic reaction.

The reaction of a cold pack for the treatment of injuries requires the heat from the surroundings and convert it to heat for recovery. So this requires energy and there is no loss in surroundings. It can't be the exothermic reaction.

The vaporization of water requires heat energy for transmission to the vapor state. This does not emit energy. This can't be the exothermic reaction.

The burning of Candle emits heat energy in the surroundings. This is considered an exothermic reaction.

For more information, refer the link:

https://brainly.com/question/10373907?referrer=searchResults

What is the cause of farsightedness?
The cornea is irregular.
The cornea is opaque.
The eyeball is shortened.
The eyeball is elongated.

Answers

The eyeball is shortened

Answer:

The eyeball is shortened.

Explanation:

Farsightedness, popularly known as difficulty seeing closely, is a common refractive problem, where the image in the eye forms after the retina rather than exactly over the retina, which hinders the brain's ability to process the image correctly. In farsightedness there is no difficulty in seeing objects from afar, but when you get closer, it becomes very difficult to focus on them.

The eyeball works the same way as a dark box: light enters the pupil and forms the image on the retina. The shape of the eye and cornea is perfect for the image to form in the right place (the macula), and then the information is sent to the brain by the optic nerve.

When you have farsightedness, the eyeball is a little shortened or the flatter cornea, so the image ends up forming after the retina, ie the image the retina captures is not correct.

What is the oxidation state of an individual phosphorus atom in P O 3 3−?

Answers

-3 - 3(-2) = +3
___________________

Electromagnetic waves, such as visible light, travel in a multitude of orientations. A substance that filters the light so that it only passes through in one plane works somewhat like a fence that allows only some light to pass through. This is the principle of -
A. refraction.
B. diffraction.
C. polarization.
D. interference.

Answers

I believe this is the principle of polarization.
It is the property of electromagnetic waves such as light waves, in which the direction and magnitude of the vibrating electric field are related in a specific way. Electromagnetic waves are the types of waves that do not require a material medium for transmission and travels with the speed of light.

A fruit and oatmeal bar contains 142 nutritional calories. Convert this energy to calories

Answers

Answer is: a fruit and oatmeal bar contains 142000 calories.
A nutritional calorie, or kilocalorie, is equal to 1000 calories.
E = 142 kcal · 1000 cal/kcal.
E = 142 000 cal.
Calorie (cal), or small calorie, is the amount of energy needed to heat one gram of water by one degree Celsius.
One small calorie is approximately 4.2 joules.
A calorie is a unit of energy.

Final answer:

142 nutritional calories (Cal) are equal to 142,000 calories (cal) since one nutritional Calorie is equivalent to 1000 scientific calories (cal).

Explanation:

To convert 142 nutritional calories to calories, you need to understand the relationship between the two units. In nutrition, when we say 'calories', we actually mean 'kilocalories' (kcal). One nutritional calorie (with an uppercase C) is equal to one kilocalorie (kcal), and one kilocalorie is equivalent to 1000 calories (with lowercase c).

Therefore, 142 nutritional calories (Cal) are equivalent to 142,000 calories (cal).

The conversion formula is as follows:
142 Cal * 1000 = 142,000 cal

If the temperature of a 5 L sample of gas is lowered from 400k to 200k, what will the resulting volume of the gas be?

Question 4 options:

10 L


50 L


2.5 mL


2.5 L

Answers

The answer would be 2.5ML

What most determines the entropy of a solid? A. The mobility of electrons in the solid B. The crystalline structure of the solid C. The specific heat capacity of the solid D. The enthalpy of formation of the solid

Answers

the correct answer is B.
The crystalline structure of solid is the most to determine the entropy of a solid. Entropy can be termed as disorder or chaos in a closed system.
The densest solid is Osmium. To determine the solubility products in solids in water is tabulated in specified pressure and temperature. 

Answer:

The crystalline structure of the solid

Explanation:

The third law of thermodynamics has to do with entropy. It states that the entropy of a perfectly ordered crystal lattice is zero at the absolute zero temperature.

Let us be reminded that entropy is the degree is disorderliness in a system. Hence, atoms of a crystal lattice stop moving as the system approaches absolute zero, the entropy also tends to a constant value.

This clearly shows that the crystalline structure of a solid material determines the degree of entropy of the solid.

Which of these changes would cause a decrease in the pressure of a contained gas?

Answers

The equation is pv=nrt. So to decrease pressure, one would increase volume, decrease moles, or decrease temperature.

if 24500 J is applied to 125g of water at 35 C, what will the final temperature of the water be?

Answers

The  final  temperature  of  water  is calculated  using the below  equation

Q= MC delta  T
Q= heat  energy (24500  j)
m= mass( 125 g)
c= specific   heat capacity (  4.18  j/g/c)
delta T = change  in temperature ( final temperature -initial  temperature)=(T-35)

final  temperature  is therefore=24500 j =125 g x 4.18 g/j/c  x (T- 35)
24500 j=522.5 (T-35 c)
24500 j = 522.5T -18287.5

like  terms  together  24500 + 18287.5 =522.5 T
42787.5j =522.5 T
divide both  side  by  522.5 T

T=81.9 c


When a nucleus undergoes nuclear decay by gamma rays the atomic number of the element?

Answers

I believe that when a nucleus undergoes a nuclear decay by gamma rays the atomic number of element remains the same. Atomic number is the number of protons of a given atom of an element. Gamma decay unlike alpha and beta decay does not have an effect on the mass number and atomic number of an atom.

When a nucleus undergoes nuclear decay by gamma rays the atomic number of the element remains unchanged

When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element remains unchanged. This type of decay involves the emission of high-energy gamma ray photons, which reduces the nucleus's energy state but does not alter the number of protons or neutrons.

For instance, an isotope in an excited state, such as technetium-99m, undergoes gamma decay to release a gamma photon and becomes technetium-99, but both have the same atomic number of 43.

A chemical supply company sells a concentrated solution of aqueous h2so4 (molar mass 98 g mol−1 ) that is 50. percent h2so4 by mass. at 25°c, the density of the solution is 1.4 g ml−1 . what is the molarity of the h2so4 solution at 25°c?

Answers

Answer is: the molarity of the sulfuric acid is 7.14 M.
ω(H₂SO₄) = 50% ÷ 100% = 0.5.
d(H₂SO₄) = 1.4 g/mL.
V(H₂SO₄) = 100 mL ÷ 1000 mL/L = 0.1 L..
mr(H₂SO₄) = d(H₂SO₄) · V(H₂SO₄).
mr(H₂SO₄) = 1.4 g/mL · 100 mL.
mr(H₂SO₄) = 140 g.
m(H₂SO₄) = ω(H₂SO₄) · mr(H₂SO₄).
m(H₂SO₄) = 0.5 · 140 g.
m(H₂SO₄) = 70 g.
n(H₂SO₄) = m(H₂SO₄) ÷ M(H₂SO₄).
n(H₂SO₄) = 70 g ÷ 98 g/mol.
n(H₂SO₄) = 0.714 mol.
c(H₂SO₄) = n(H₂SO₄) ÷ V(H₂SO₄).
c(H₂SO₄) = 0.714 mol ÷ 0.1 L.
C(H₂SO₄) = 7.14 M.

A gas sample occupies 3.50 liters of volume at 20.°c. what volume will this gas occupy at 100°c (reported to three significant figures)?

Answers

Based on Charle's Law, we have
[tex] \frac{V1}{V2} = \frac{T1}{T2} [/tex]
where, V and T are volume and temperature respectively. 

Now, given that, V1 = 3.5 L, T1 = [tex] 20 ^{0}C[/tex] = 293 K and T2 = [tex] 100^{0}C[/tex] = 373 K

∴ V2 = [tex] \frac{(T2)X(V1)}{T1} = \frac{373 X 3.5}{293} = 4.556l [/tex]

Both protons and neutrons (and their anti-particles) froze out:

Answers

I think Both protons and neutrons (and their anti-particles) froze out at 1013 K, about 0.0001 seconds after the Big Bang. Protons and neutrons are sub atomic particles of an atom that are found in the nucleus of an atom. Proton is the positively charge particle while the neutron has no charge. The proton positive charge accounts for the positive nuclear charge. 

An aqueous solution is made up of
A. colloids
B. pure water molecules
C. ions dissociated in solution
D. covalent molecules in a water solution.

Answers

I believe an aqueous solution is made up of ions dissociated in solution. An aqueous solution is a solution in which water acts as a solvent. For example a solution sodium chloride in water is shown as Na+(aq) + Cl-(aq). Most acids and bases exists in aqueous solution form. 

Lithium hydroxide is used to purify air by removing carbon dioxide. a 25.00ml sample of lithium hydroxide solution is titrated to an end point by 15.22 ml of a 0.3340m hydrochloric acid solution. what is the molarity of the lioh solution

Answers

the balanced reaction between LiOH and HCl is as follows
LiOH + HCl ----> LiCl + H₂O
stoichiometry of LiOH to HCl is 1:1
number of moles of HCl reacted = concentration of HCl x volume 
number of HCl moles = 0.3340 mol/L x (15.22 x 10⁻³ L) = 5.083 x 10⁻³ mol 
according to molar ratio
number of HCl moles = number of LiOH moles
number of LiOH moles in 25.00 mL = 5.083 x 10⁻³ mol 
therefore LiOH moles in 1 L = 5.083 x 10⁻³ mol / (25.00 x 10⁻³ L) = 0.2033 mol/L
molarity of LiOH - 0.2033 M

A sample of O2 occupies a volume of 600 mL. If the pressure exerted on the O2 is tripled with the temperature remaining constant, the new volume of the oxygen is

Answers

For 1 mole of an ideal gas, we have PV=RT............(Eq. 1)
where, P = pressure
V= volume
R = universal gas constant
T = Temperature

Let, P1, V1 and T1 be initial pressure, volume and temperature of [tex] O_{2} [/tex] respectively

Let, P2, V2 and T2 be pressure, volume and temperature of [tex] O_{2} [/tex] respectively, after application of pressure.

Using Eq. 1 we get, [tex] \frac{P1V1}{P2V2} = \frac{T1}{T2} [/tex] ....... (Eq. 2)

Now, since that T1=T2 and P2=3(P1)

∴ Eq. 2 becomes P1V1=P2V2
∴ [tex] \frac{V2}{V1} = \frac{P1}{P2} = \frac{1}{3} [/tex]
∴ V2 = [tex] \frac{1}{3} [/tex] V1

Thus, final volume V2 will be 1/3 of initial volume V1

How to make sulfur hexafluoride?

Answers

sulfer and fluorine but you need special equipment to get it

What conditions favor the formation of ionic compounds from elements? both atoms must be non metals. you must have a metal and a nonmetal. both atoms must be metals. you must have a metal atom and a halogen?

Answers

You must have a metal and a non-metal
Final answer:

The formation of ionic compounds is favored when a metal, which loses electrons, combines with a nonmetal, which gains electrons. This process results in an ionic compound stabilized by ionic bonds between ions of opposite charges, a well-known example being sodium chloride (NaCl). It's also possible for an ionic compound to form between a metal atom and a halogen.

Explanation:

The conditions favoring the formation of ionic compounds typically involve a metal and a nonmetal. This is because metals, which have low ionization potential, tend to readily lose electrons and nonmetals, with high electron affinities, tend to gain electrons. In this process, such as the formation of sodium chloride (NaCl), the metal (sodium) loses an electron to form a cation (Na+), and the nonmetal (chlorine) gains an electron to form an anion (Cl-), resulting in an ionic compound. The compound is stabilized by ionic bonds, which are electrostatic attractions between ions of opposite charges.

The formation of ionic compounds ensures that both the metal and nonmetal achieve a stable electron configuration, often referred to as an octet. Additionally, ionic compounds can also form between a metal atom and a halogen as halogens are a group of nonmetals that are extremely electron-affinitive.

Lastly, it's important to note that not all combinations of metals and nonmetals produce ionic compounds. For instance, compounds that do not contain ions but consist of atoms bonded tightly together in molecules, usually form from two nonmetals and are called covalent compounds.

Learn more about Ionic Compounds here:

https://brainly.com/question/3222171

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A gas expands from a volume of 2.00L at 36.0oC to a volume of 2.50 L, what is the final temperature, if the pressure is constant?

Answers

We shall consider V, the volume and T, the temperature.
According to Boyle's Laws:
[tex] \frac{V1}{T1} = \frac{V2}{T2} [/tex]
In our case:
[tex] \frac{2.00}{36.0} = \frac{2.50}{T2} =\ \textgreater \ T2= \frac{2.50*36.00}{2.00} = 45 [/tex]

The final temperature is 45.45 Celcius

Explanation:

The Combined Gas Law:

The combined gas law allows to derive relationships between  the variable that undergoes like pressure, temperature and volume.

[tex]\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}[/tex]

It is given thatpressure is constant so,

[tex]P_1=P_2[/tex]

Hence combined gas law becomes,

[tex]\frac{ V_1}{T_1}=\frac{V_2}{T_2}[/tex]

Substituting the values given in the question,

[tex]\frac{2.00}{36}=\frac{2.50}{T_2}[/tex]

[tex]0.055=\frac{2.50}{T_2}[/tex]

[tex]T_2=\frac{2.50}{0.055}[/tex]

[tex]T_2[/tex]=45.45 C


Which of the following equations can be used to determine the change in enthalpy of a system?

Answers

The answer for Plato will be letter A

The ratios of volumes of the gaseous reactants and products in a chemical reaction at constant temperature and pressure can be determined from the

Answers

The ratios of volumes of the gaseous reactants and products in a chemical reaction at constant temperature and pressure can be determined from the ratios of the mole (or coefficients) of the gaseous reactants and products.

what is the key difference between a liquid and a gas?

Answers

Answer :

The key differences between a liquid and the a gas is,

Shape and volume :

A liquid has no fixed shape but it has a volume.

A gas has neither a fixed shape nor a volume.

Inter-molecular space :

A liquid has more inter-molecular space between the molecules.

A gas has larger inter-molecular space between the molecules as compared to the liquids.

Inter-molecular attraction :

A liquid has some Inter-molecular attraction between the molecules because of the low Inter-molecular spacing between the molecules.

A gas has very low or minimum Inter-molecular attraction between the molecules because of the larger Inter-molecular spacing between the molecules.

Fluidity :

A liquid flow from the higher to the lower region but a gas flow in all the direction.

Liquids and gases differ from each other in the following ways:

1. Intermolecular forces

2. Motion of particles

3. Direction of flow

4. Compressibility

Further Explanation:

Matter can mainly exist in three physical states. These are solid, liquid and gas.

Solid

It is that state of matter that has a definite shape and volume. These have a regular arrangement of its constituent particles. These have the strongest intermolecular forces between their constituent particles and therefore the motion of particles in solid is almost negligible. Table salt, wood, and diamond are some examples of solids.

Liquid

The state of matter with a definite volume but no particular shape is called liquid. The intermolecular forces in the liquids are weaker than that in solids and therefore the motion of particles in liquids is more as compared to that in solids. Milk, water, and bromine are some examples of liquids.

Gas

This state of matter has neither a definite shape nor a definite volume. These have a disordered arrangement of its constituent particles. These have the weakest intermolecular forces between their constituent particles and therefore the motion of particles in a gas is the highest among all states of matter. Nitrogen, hydrogen and carbon dioxide are some examples of gases.

Liquids have a definite volume but gases occupy the volume of the container in which these are kept.

Liquids have stronger intermolecular forces as compared to that of gases so the motion of gas particles is more than that of liquid particles.

Liquids are incompressible whereas gases are highly compressible in nature.

The flow of liquid takes place from higher to lower level while gases can move randomly in all directions.

Learn more:

1. Which sample is a pure substance? https://brainly.com/question/2227438

2. Which is a characteristic of a  mixture? https://brainly.com/question/1917079

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Matter in our surroundings

Keywords: liquid, gas, solid, states of matter, intermolecular forces, shape, volume, matter, strong, weakest, motion of particles.

When 2 mol of solid magnesium mg combines with 1 mole of oxygen gas 2 mol of solid magnesium oxide is formed and 1204 kj of heat is released write the thermochemical equation for the combustion reaction?

Answers

In a combustion reaction, element or molecule reaction with oxygen to form corresponding oxide.

In present case, 2 mol of solid magnesium mg combines with 1 mole of oxygen gas 2 mol of solid magnesium oxide is formed and 1204 kj of heat is released. The balanced thermochemical equation for the combustion reaction is 

2Mg    +    O2    →      2 MgO     +   1204 kJ

here, 1204 kJ is the energy liberated by the system during the reaction. Liberation of energy suggest the it is an exothermic reaction and the resultant product formed is thermodynamically more stable than reactant. 

The thermochemical equation for the combustion reaction of magnesium with oxygen is:

[tex]\[ 2 \text{Mg}(s) + \text{O}_2(g) \rightarrow 2 \text{MgO}(s) \quad \Delta H = -1204 \text{ kJ} \][/tex]

The given reaction is the combustion of magnesium (Mg) with oxygen (O2) to form magnesium oxide (MgO). According to the stoichiometry provided in the question, 2 moles of solid magnesium react with 1 mole of oxygen gas to produce 2 moles of solid magnesium oxide. Along with the formation of products, 1204 kJ of heat is released, indicating that the reaction is exothermic.

In a thermochemical equation, the reactants are written on the left side, and the products are written on the right side, separated by an arrow that points towards the products. The coefficients in the equation (the numbers in front of the chemical formulas) represent the moles of each substance involved in the reaction. In this case, the coefficients are 2 for magnesium, 1 for oxygen, and 2 for magnesium oxide, as given in the question.

The enthalpy change [tex](\(\Delta H\))[/tex] for the reaction is included at the end of the equation to indicate the amount of heat absorbed or released during the reaction. Since the reaction releases heat, the enthalpy change is negative, and it is equal to -1204 kJ for the given reaction. This negative sign indicates that the system releases energy to the surroundings.

Therefore, the complete thermochemical equation, which includes the stoichiometric coefficients and the enthalpy change, is written as:

[tex]\[ 2 \text{Mg}(s) + \text{O}_2(g) \rightarrow 2 \text{MgO}(s) \quad \Delta H = -1204 \text{ kJ} \][/tex]

This equation accurately represents the combustion reaction of magnesium with oxygen, both stoichiometrically and thermochemically.

is h2c2o4 an Arrhenius base or arrhenius acid

Answers

Answer:
            Oxalic Acid is and Arrhenius Acid.

Explanation:
                   According to Arrhenius Theory of acid and base, "Acid is any substance which when dissolved in water produces H⁺ Ions".

Therefore, Oxalic Acid is a diprotic substance, which is capable of donating protons in water. This acidity of oxalic acid can be dedicated to the stability of conjugate base, this stability comes from resonance of the negative charges on Oxalate ion. Below reaction shows the dissociation of Oxalic Acid into Protons and Oxalate Ion.

H₂C₂O₄, or oxalic acid, is an Arrhenius acid because it dissociates in water to produce hydrogen ions.

H₂C₂O₄, also known as oxalic acid, is an Arrhenius acid, not an Arrhenius base. An Arrhenius acid is defined as a compound which ionizes to yield hydrogen ions (H+) in aqueous solution, whereas an Arrhenius base ionizes to yield hydroxide ions (OH-). Since H₂C₂O₄ dissociates in water to produce two H+ ions and the oxalate ion (C₂O₄-), it increases the H+ ion concentration, making it an acid according to Arrhenius's definition.

Determine the molarity of a solution made by dissolving 11.7 g of NaNO3 in water where the final volume of the solution is 250.0 mL.

Answers

Molarity is defined as the number of moles of solute in 1 L solution.
we have been given the mass of NaNO₃ dissolved in 250.0 mL
number of moles of NaNO₃ - 11.7 g / 85 g/mol = 0.138 mol 
number of NaNO₃ moles in 250.0 mL - 0.138 mol 
since molarity is the number of moles in 1 L
number of NaNO₃ moles in 1000 mL - 0.138 mol / 250.0 mL x 1000mL/L = 0.552 mol 
molarity of NaNO₃ is 0.552 M

Answer:

[tex]0.552~M[/tex]

Explanation:

For the calculation of molarity "M" we have start with the molarity equation:

[tex]M=\frac{mol}{L}[/tex]

So, we have to calculate the moles of [tex]NaNO_3[/tex] and the L of [tex]NaNO_3[/tex].

For the calculations of moles we have to use the molar mass of [tex]NaNO_3[/tex].

Na=23 g/mol

N=14 g/mol

O= 16 g/mol

[tex]molar~mass~=~(23*1)+(14*1)+(16*3)=85~g/mol[/tex]

or

[tex]1~mol~NaNO_3=85~g~NaNO_3[/tex]

Now, we can find the moles of  [tex]NaNO_3[/tex]:

[tex]11.7~g~NaNO_3*\frac{1~mol~NaNO_3}{85~g~NaNO_3} =0.138~mol~NaNO_3[/tex]

The next step would be the converstion from mL to L:

[tex]250.0~mL~*\frac{1~L}{1000~mL} =~0.25~L\\[/tex]

Finally, we have to plug both values in the molarity equation:

[tex]M=\frac{0.138~mol}{0.25~L}=~0.552~M[/tex]

For the reaction, identify the Lewis acid and the Lewis base.
AlF3 + CH3F → CH3+ + [AlF4]-

Answers

Answer:
            AlF₃ is Lewis Acid

            CH₃F is Lewis Base

Explanation:
                     According to Lewis concept ,"those compounds which donate pair of electrons are called as Lewis Base and those accepting pair of electrons are called as Lewis Acid.

In Given Reaction,
                               AlF₃ + CH₃F → CH₃⁺ + [AlF₄]⁻

AlF₃ is acting as acid because the octet of Al is not complete, hence it has tendency to accept electrons.

CH₃F is acting as a base because the F atom containing three lone pair of electrons can donate it to Al metal resulting in the formation of electrophile i.e. CH₃⁺.

What is the molality of a solution made by dissolving 14.7 g of c6h12o6 into 150.0 ml of water? assume the density of water is 1.00 g/ml?

Answers

Hello!

We have the following data:

W (molality) = ? (in Molal)
m1 (mass of the solute) = 14.7 g
m2 (mass of the solvent) =? (in Kg)
d (solvent density) = 1,00 g/mL
V (volume of the solvent) = 150 mL

The mass of the solvent will be found by the following formula

[tex]d = \dfrac{m_2}{V} [/tex]

[tex]1 = \dfrac{m_2}{150} [/tex]

[tex]m_2 = 1*150 [/tex]

[tex]m_2 = 150\:g\to \boxed{m_2 = 0,15\:Kg}[/tex]

M1 (Molar mass of solute - C6H12O6) = ?
C = 6*12 = 72 u
H = 12*81 = 12 u
O = 6*16 = 96 u
------------------------
M1 (Molar mass of solute - C6H12O6) = 72+12+96 = 180 g/mol

Now, let's find Molality, applying the above data to the formula, let's see:

[tex]\omega = \dfrac{m_1}{M_1*m_2} [/tex]

[tex]\omega = \dfrac{14,7}{180*0,15}[/tex]

[tex]\omega = \dfrac{14,7}{27}[/tex]

[tex]\boxed{\boxed{\omega \approx 0,54\:Molal}}\end{array}}\qquad\checkmark[/tex]

I hope this helps. =)

Final answer:

The molality of the solution is calculated by dividing the number of moles of glucose by the mass of water in kilograms, resulting in a solution with a molality of 0.544 m.

Explanation:

The question is asking to calculate the molality of a glucose solution. To find the molality, we need to know the mass of the solute (glucose) and the mass of the solvent (water) in kilograms.

Steps to Calculate Molality

First, calculate the number of moles of glucose (C6H12O6). Its molar mass is 180.16 g/mol.

Next, convert the mass of water from milliliters to kilograms. Since the density of water is 1.00 g/mL, we simply convert 150.0 mL to grams and then to kilograms.

Finally, use the equation for molality: molality (m) = moles of solute (mol) / mass of solvent (kg).

Let's perform the calculations:

Moles of glucose = 14.7 g / 180.16 g/mol = 0.0816 mol

Mass of water = 150.0 mL * 1.00 g/mL = 150.0 g = 0.150 kg

Molality of the solution = 0.0816 mol / 0.150 kg = 0.544 m

Which of the following describes the strong nuclear force? A. A strong repelling force between protons and electrons B. A strong attractive force between protons and neutrons C. A strong repelling force between protons and neutrons D. A strong attractive force between neutrons and electrons

Answers

Answer:

The correct answer is option B.

Explanation:

Strong nuclear force is defined as strong force of an attraction which binds the quarks together to form a cluster of subatomic particles like protons and neutrons in the nucleus. This is the force which keeps the nucleus intact.

So, we can say that is an strong attractive force between the proton and neutron.

Answer:

B. A strong attractive force between protons and neutrons.

Explanation:

Correct answer for APEX quiz.

Other Questions
Write a paragraph of at least 5 sentences in French, explaining to that person how to start and turn off the computer, how to get to her/his emails, open them, respond to the emails and send them. What is the half-life of an isotope that decays to 6.25% of its original activity in 18.9 hours? Less than ______ of all thunderstorms produce tornadoes. 10% The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?1 A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 5 9 degree Celsius.11 A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.111 A temperature increase of 5 9 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius. A) I only B) II only C) III only D) I and II only what's a qat on a computer What main arguments does Churchill present that he uses to describe the failure of appeasement? Samantha measured two of the angles in PQR and found that they had measures of 65 and 70. Then, she measured two of the angles in XYZ and found that they had measures of 65 and 45. What statement best describes the two triangles? Which statement best describes the impact of medical advances on global standards of living?A. Medical advances generally improved standards of living for people in developed and developing nations.B. Medical advances improved the standard of living for most people in developed nations, but only for few people in developing nations. C. Medical advances improved the standard of living for most people in developing nations, but only few people in developed nations. D. Medical advances has limited impact on a majority of people in developed or developing nations. Michelle will be 72 years old in eighteen years. How old is Michelle now? When malicious code is planted on your computer and alters your browser's ability to find web addresses, it is known as ________. phishing pretexting polymorphing pharming? When the system denies access to someone who is authorized it is called a - false negative? How is food broken down in the mouth? - (please include three things) 2x-14y= -16 solve for x .. Is widely recognized as an authoritarian state Has an elected President and Vice-President Has a bicameral legislative branch- National Assembly and Council of States Has a legal system based on Islamic law From these details, what African government is being described? A)Republic of Kenya B)Republic of Benin C)Republic of the Sudan D)Central African Republic While many people might scoff at the very concept, light pollution is fast becoming a serious problem. Light pollution most commonly occurs when the beam of a high-wattage fixture is aimed toward the sky. When a spotlight is used to illuminate statues or buildings, for example, some of the light falls on its intended target, while the rest of the light beam is left to scatter into thin air. The result is an effect called urban sky glow, which is essentially a giant shroud of misdirected light that hangs over a city in the night sky. While some may find this phenomenon picturesque when seen from an airplane, it is the reason why only the very brightest stars are visible to citizens of urban environments. As light pollution continues to increase, it is entirely possible that future generations of city dwellers will not be able to see any stars at all.Humans are not the only victims of light pollution; some wildlife species are adversely affected as well. Nocturnal animals such as owls and bats are driven from their own habitats when excessively bright lighting is introduced to these areas. As the growing amount of light pollution causes the habitats of nocturnal creatures to shrink, they will have a more difficult time finding food and breeding successfully. This will inevitably result in a serious population decline unless something is done to keep light pollution in check.Light pollution is a prime example of how most humans habitually consume energy without any consideration of the consequences. It is time that we stop turning a blind eye to the state of the world around us. Working to reduce light pollution is the perfect place to start. Is it truly necessary to have 50 spotlights illuminating trees on a corporate lawn? Is it essential for a restaurant that closes at midnight to have a flashing neon sign operating around the clock? Was the new outlet mall's grand opening only a success because of the 2-megawatt searchlights that hurtled their beams at the stars? Nothing is gained from such blatant waste of light energy.What is the purpose of this essay?A.to make readers aware of the potential harm caused by light pollution and persuade them to take measures to control itB.to inform readers about nocturnal animals facing extinction and persuade readers to take steps to protect those species C.to create interest in environmental science and encourage students to take it up as a career or a life concernD.to convince readers of the need to reduce the consumption of electrical energy and suggest strategies for doing so*Academic Success question* A combination lock requires 4 selections of numbers, each from 1 to 20. how many different combinations are there? suppose that the lock is constructed in such a way that no number maybe used twice. how many different combinations are possible? Which statement uses the correct MLA in-text citation? A.One author believes that young children who participate in sports are more likely to understand the value of teamwork (25). B.Lenore Westerberg, author of the book Monkey in the Middle, says that young children who participate in sports are more likely to understand the value of teamwork (25). C.In Monkey in the Middle, Lenore Westerberg says that young children who participate in sports are more likely to understand the value of teamwork. D.In her book Monkey in the Middle, Lenore Westerberg says that young children who participate in sports are more likely to understand the value of teamwork (Westerberg 25). To estimate the percentage of all their customers that would buy a new flavor, an ice cream shop surveys the first five customers that place an order. Will this likely give an accurate estimate of this percentage? Select from the drop-down menus to correctly complete the statement: This method is (blank) to give an accurate estimate of the percentage since it (blank) from a large enough randomly selected sample of customers.The options for the first blank are:A. Likely B. Not likelyThe options for the second blank are:A. Used dataB. Did not use dataPLZ HELP!!!!! Process in which water vapor turns directly to a solid Use the chart to answer the question. Which battle is considered a turning point in the war? DateBattleResult April 19, 1775Lexington-ConcordBegan the Revolution December 26, 1776TrentonWashington captured the Hessian forces stationed here with minimum casualties. September 11, 1777BrandywineBritish victory drove Washington and army to Philadelphia. September 19, 1777Saratoga (Freeman's Farm)Burgoyne gained control of the farm for the British but suffered significant casualties. October 7, 1777SaratogaBritish forces surrendered to the Americans, which was a turning point of the war. June 8, 1778Monmouth CourthouseAmericans won and prevented more troops from joining the British in Philadelphia. September 28, 1781Siege of YorktownAmericans, supported by the French, defeated British and won the war.