mole fraction

Q: The vapor pressure of 0.388 g of a pure substance is 0.631 atm at 20degree celcius (the molar mass…

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Q: A solution made of toluene and benzene is prepared with a mole fraction of 0.7 for toluene. If the…

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Q: The van der Walls attraction between similar colloidal particles in a solvent is always smaller than…

A: Vanderwaals forces are the interactive forces between similar particles and molecules of matter.

Q: An aqueous solution is 0.120 molal glucose. What is the mole fraction of each component in the…

A: Given  molarity = 0.120m of glucose, C6H12O6 Calculating mole component is as follows

Q: A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor…

A: Given data, Vapor pressure of pure hexane = 151 torr Vapor pressure of pure pentane = 425 torr Total…

Q: Acetone (molar mass = 58.0 g mol-1) has a vapor pressure at a given temperature of 161 torr. At the…

A: Given, Acetone (molar mass = 58.0 g mol-1) has a vapor pressure at a given temperature of 161 torr.…

Q: A solution is prepared by mixing 45.68 g of carbon disulfide (CS2, 76.13 g/mol) with 16.42 g of…

A: We know that,  the partial pressure of solute in vapor phase is equal to the mole fraction of solute…

Q: Describe the factors that affect the solubility of a solid in a liquid. What does it mean to say…

A: There are following factors which affect the solubility of solid in a liquid -  (1) Temperature -…

Q: Why is the composition of the vapor different from the composition of the solution?

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Q: A solution is an equimolar mixture of two volatile components A and B. Pure A has a vapor pressure…

A: If the given solution is ideal solution then it follows the Roult’s law. In an ideal solution, the…

Q: A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor…

A: Given information is as follows; Vapor pressure of pure pentane = 425 torr Vapor pressure of pure…

Q: An antiseptic solution contains hydrogen peroxide, H2O2, in water. The solution is 0.833 m H2O2.…

A: Molality is the no. of moles of solute dissolved in per kilogram of solvent.

Q: An aqueous solution contains 82.5 g of isopropyl alcohol (C3H7OH) in 218.5 g of solution. What is…

A: given mass of isopropyl alcohol = 82.5 g mass of solution = 218.5 g standard values molar mass of…

Q: At 80°C, the vapor pressures of pure liquid benzene and toluene are 745 Torr and 290 Torr,…

A: The mole fraction of toluene is calculated below.

Q: A solution contains a mixture of pentane and hexane at room temperature.  The solution has a vapor…

A: Given data, Vapor pressure of pure hexane = 151 torr Vapor pressure of pure pentane = 425 torr Total…

Q: When substances form liquid solutions, what two factors are involved in determining the solubility…

A: When a solute is dissolved in solvent then the old interactions between solute-solute and…

Q: Calculate the molal concentration, molar concentration, and mole fraction of 6.25% solution of H3PO4…

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Q: g of fructose (180.16 g/mol) are dissolved in 32.2 g of water (d = 1.00 g/mL, 18.02 g/mol). What…

A: Mole fraction is equal to moles of component divide by total moles of solution

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.53.…

A: Let's assume the mixture of two volatile substances and their vapor behaves ideally. Applying both…

Q: The mole fraction of ethanol in water is 0.3 calculate the molality os solution and the mass percent…

A: mole fraction of ethanol=0.3 therefore mole fraction of water=1-0.3=0.7

Q: number of moles of the solution mole fraction of the solute What is its -mole fraction of the…

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Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.73.…

A: Given: vapour pressure of A, PA∘=42.5 torrmole fraction of A, xA=0.73Vapor pressure of pure B,…

Q: A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor…

A: Given :-  vapor pressure of solution = 248 torr  vapor pressure of pure hexane = 151 torr  vapor…

Q: The mole fraction of potassium nitrate, KNO,, in an aqueous solution is 1.19x102. The percent by…

A: Percent by mass can be calculated as:-

Q: A solution consists of 61.5 g of water (18.02 g/mol) and 45.2 g of ethanol (60.6 g/mol). Ethanol is…

A: Given: Mass of the water= 61.5 g The molar mass of the water= 18.02 g/mol Mass of the ethanol= 45.2…

Q: Which of the following concentration units are temperature dependent? mole fraction molality mass…

A: Here we are asked which of the given concentration units depend on temperature.the concentration…

Q: Two volatile substances are mixed with one another so that the solution has a vapor pressure of 125…

A: Colligative properties are dependent on the number of moles of solute in the solution. There are…

Q: Two volatile substances are mixed with one another so that the solution has a vapor pressure of 125…

A: Raoult's law for volatile solute states that in a solution, the vapour pressure of a component at a…

Q: At a given temperature, you have a mixture of benzene [Pvap 745 torr) and toluene (Pvap = 290 torr).…

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Q: Distillation is a method of purification based on successive separations and recondensations of…

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Q: Why is the vapor pressure of a solution different from the vapor pressure of the pure liquid…

A: While adding the non-volatile solute into the solvent, the tendency of solvent molecule to evaporate…

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.89.…

A: Sum of mole fractions in a mixture can be taken as 1 Mole fraction of A = 0.89 Mole fraction of B =…

Q: The van der Walls attraction between similar colloidal particles in a solvent is always bigger than…

A: Vanderwaals forces are the interactive forces between similar molecules of a matter and depend on…

Q: Concentration terms such as mass percentage, ppm, mole fraction and molality are independent of…

A: Molarity of a solution is defined as the number of moles of solute dissolved per litre of solution.…

Q: At a certain temperature, diethyl ether has a vapor pressure of 400.0 torr. When a sample of benzoic…

A: vapour pressure of diethyl ether = 400 torr = Posolvent vapour pressure of the solution = 342 torr =…

Q: An aqueous solution contains 3.9% NaClNaCl by mass. Calculate the molality of the solution.…

A: Given,  An aqueous solution contains 3.9% NaCl by mass.   Molar mass of NaCl = 58.5 g/mol

Q: Calculate the grams of methanol (CH3OH) in a 15 molal solution where the solvent is 50 grams of…

A: Molality is defined as number of moles of solute present in 1 kg salvent.This means- Molarity=…

Q: Equal masses of benzene (C6H6) and toluene (C7H8) are mixed together at 20 oC. If the vapor…

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Q: The solubility of gases in water: O increases with increase pressure O decreases with decrease…

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Q: Calculate the mole fraction of each component of a solution containing 65 g of ethanol (C 2 H 6 O)…

A: Mole fraction is given by the ratio of number of moles of one component to total number of moles of…

Q: Define the following: (i) alloy (ii) solid solution

A: In given question we need to write definition for both terms. So write down the detail definition…

Q: Ethanol (C₂H₅OH) has a vapor pressure of 93.0 torr and a density of 0.785 g/mL. Pentane (C₅H₁₂) has…

A: Raoult's law for liquid-liquid solution :- It states that " for a solution of volatile liquids the…

Q: The mole fraction of methanol in a solution that contains 16 g of methanol (32 g/mol) and 90 g of…

A: Since you have posted a question with multiple questions, we will solve first question for you. To…

Q: What mass (g) of sodium nitrate must be added to 500 ml of water to prepare a solution that is…

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Q: An aqueous solution contains 5.0% NaCl by mass. Calculate the molality and mole fraction of the…

A: 5%  NaCl by mass means 5 g of solute is dissolved in 100 g of solution. Mass of solute (NaCl) = 5g…

Q: A solution contains two volatile organic compounds as indicated in the table. What is the vapor…

A: Raoult's law:Raoult's law states that the partial pressure of each component of an ideal mixture of…

Q: The molality of an aqueous solution of LiBr is 2.3 m. What is the mole fraction of the compound LiBr…

A: We have an aqueous solution of LiBr. molality (m) of an aqueous solution of LiBr = 2.3 molal molar…

Q: How many grams of sodium chloride are contained within a 35.0 gram sample of a 3.00 molal aqueous…

A: Given mass of sample = 35 g molality = 3 molal

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.