aoult's law can be used to determine the molar mass of an unknown substance based on the vapor pressure of a solution. This problem will walk you through the steps required. A chemist wants to determine the molar mass of a naturally occurring substance isolated from spearmint. She adds 5.131 g of this substance to 25.00 g of acetone (C3H6O; molar mass 58.08 g/mol). The vapor pressure of the solution is determined to be 0.2444 atm at 25°C. If the vapor pressure of pure acetone at this temperature is 0.2630 atm, what is the mole fraction of the solvent in this solution? Give your answer to four significant digits.   Using your answer from Part 1, calculate the moles of solute present in the solution. Give your answer to three significant digits.

Q: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

A: To solve this problem we will use the formula of molality

Q: The vapor pressure of water at 25°C is 23.8 torr. An aqueous solution was made by dissolving…

A: Vapour pressure of water(P°) = 23.8 torr  Vapour pressure of solution (P) = 23.3 torr  Mass of water…

Q: What is the freezing point of a solution containing 2.80 grams benzene (molar mass = 78.11 g/mol)…

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Q: Part B As a scuba diver descends under water, the pressure increases. At a total air pressure of…

A: Note - Since you have asked multiple question, we will solve the first question for you. If you want…

Q: When 0.357 g of an unknown compound was dissolved in 60.0 g of benzene (MM: 78.11g/mol), the…

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Q: What mass of ethylene glycol (C2H6O2), molar mass 62.1 g/mol), the main component of antifreeze,…

A: the freezing point of the solution = 10.0 °F = (10°F − 32) × 5/9 = -12.22°C Depression in freezing…

Q: 15. What is the freezing point for an aqueous solution of KBr that was made from dissolving 25.0…

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Q: The freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kf(benzene) = 5.12 °C/mIn a…

A: The objective of this question is to determine the molecular weight of a newly synthesized compound…

Q: The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.140 g of an unknown…

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Q: A student dissolves 18. g of biphenyl (C₁2H₁0) in 100. mL of a solvent with a density of 1.04 g/mL.…

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Q: The boiling point of a solution made up of ethylene glycol (C2H6O2) and 50 g of water is 100.85°C.…

A: To Solve this problem first we have to calculate the molality of the Solution then we will calculate…

Q: Calculate the freezing point of a solution of 35.0 g methyl salicylate, C 7H 6O 2, dissolved in 800.…

A: Calculate the number of moles of methyl salicylate (C8H8O3): Calculate the molality of the…

Q: molarity molality

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Q: Calculate the vapor pressure of a solution containing 26.8 g of glycerin (C3H8O3) in 114 mL of water…

A: The values are provided in questionmass of glycerin = 26.8 gvolume of water V = 114 mL Temperature T…

Q: A solution made by dissolving 150.0 g of an unknown compound in 375.0 mL of benzene to make a…

A: The question is based on the concept of solutions. depression in freezing point is a colligative…

Q: Suppose that you add 27.5 g of an unknown molecular compound to 0.250 kg of benzene, which has a Kf…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions…

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.