Vapor Pressure Lowering The vapor pressure of a pure solvent is REDUCED when a nonvolatile solute is added. This is summarized by Raoult's Law: Psolution = Xsolvent Posolvent Where: Psolution is the vapor pressure of the solution Xsolvent is the mole fraction of the solvent in the solution = (mol solvent)/(mol solvent + mol solute) Pºsolvent is the vapor pressure of the pure solvent As more solute particles are added, the mole fraction of the solvent goes down, and the vapor pressure is reduced.

Q: When 21.0 of a certain molecular compound X are dissolved in 55.0 g Of formamide (NH,COH), the…

A: Given: Freezing point of NH2COH solution = -1.4 oC Mass of compound X dissolved = 21.0 g. Mass of…

Q: A solid mixture made up of 75% of solid A and 25% of solid B by mass is to be dissolved in 250.0 ±…

A: Given: % of Solid A = 75% % of Solid B = 25 % Volume of water = 250.0 ± 0.5 mL Molality of solution…

Q: A solution is made by mixing 72.1 g of propyl chloride, C3H7Cl, and 38.4 g of propyl bromide,…

A: Raoult's law is utilized in measuring any existing component's vapor pressure. As per this law, at…

Q: A solution is prepared by mixing 3.64 mol of acetone with 1.45 mol of cyclohexane at 30°C.…

A: Given:Moles of acetone in liquid phase = 3.64 molMoles of cyclohexane in liquid phase = 1.45…

Q: Part A Isotonic saline solution, which has the same osmotic pressure as blood, can be prepared by…

A: Mass of NaCl = 0.923 g  Volume of solution = 100 ml  ...Or  because 1L = 1000 ml    ...so,  = 100 ml…

Q: Calculate the freezing point change for a given concentration.

A:

Q: The freezing point of 50.40 g of a pure solvent is measured to be 47.46 ºC. When 2.10 g of an…

A:

Q: Colligative Properties The freezing point of carbon tetrachloride (CCl4)  is -23.0C.  When a…

A: Given,  Freezing point of CCl4 (Tf0)= -230C = -23 + 273 K = 250 K After adding nonvolatile solute…

Q: When 4.10 g of a certain molecular compound X are dissolved in 80.0 g of dibenzyl ether…

A:

Q: The freezing point of a liquid will change when a solute is added. Explain how the addition of salt…

A: Elevation in boiling point and depression in freezing point are colligative properties which depend…

Q: Some ethylene glycol, HOCH2CH2OH, is added to your car’s cooling system along with 5 kg of water. If…

A: Colligative property is the property which depend on number of moles of solute not on nature of…

Q: The freezing point of 48.06 g of a pure solvent is measured to be 45.44 ºC. When 2.04 g of an…

A:

Q: freezing point of 57.08 g of a pure solvent is measured to be 50.83 ºC. When 2.86 g of an unknown…

A: Given -> Weight of solvent= 57.08 gm = 0.05708 kg (1kg=1000g) Freezing point of pure solvent =…

Q: The freezing point of 58.53 g of a pure solvent is measured to be 44.17 ºC. When 2.15 g of an…

A: We are given with a data for the depression in freezing point on adding a solute to a pure solvent…

Q: When 627. mg of a certain molecular compound X are dissolved in 75. g of cyclohexane (C H 12 the…

A: The freezing point depression of solution is as follows,                                  ∆Tf = Kf .…

Q: The normal freezing point of a certain liquid X is 4.70°C, but when 83.g of benzamide (C7H7NO) is…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: An online study examined the lowering of freezing point when 0.222 g of an unknown molecular solute…

A: Mass of in known compound ,m = 0.222g Let the molar mass of compound be M g/mol. Then, number of…

Q: When 498. mg of a certain molecular compound X are dissolved in 25.0 g of dibenzyl ether…

A: A numerical problem based on properties of liquids. A set of data for depression of freezing point…

Q: When 571. mg of a certain molecular compound X are dissolved in 60.0 g of benzene (CH), the freezing…

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Q: The vapor in equilibrium above a hexane-pentane solution at 25.0°C has a mole fraction of hexane…

A: Components of solution : hexane and pentane. Mole fraction of hexane in vapor phase (y1) = 0.70…

Q: The freezing point of 59.49 g of a pure solvent is measured to be 44.96 ºC. When 2.18 g of an…

A: Freezing point of the liquid is the temperature at which the vapor pressure of the solvent in the…

Q: 15) The vapor pressure of an aqueous solution (P(solution) is found to be 24.9 torr at 25°C. What is…

A: According to Raoult's law: Psolution=XsolventPsolvento Where, P, Po are the vapour pressure of the…

Q: The freezing point of 57.08 g of a pure solvent is measured to be 50.83 ºC. When 2.86 g of an…

A:

Q: The normal freezing point of a certain liquid X is 4.60°C, but when 40.g of iron(III) nitrate…

A: We know that, depression in freezing point in terms of Van’t Hof factor is given by,…

Q: Shown below is a plot of the solubility of benzoic acid in water as a function of temperature.…

A: Solubility : Solubility is defined as the maximum amount of solute which can be dissolved in the…

Q: A polymer of large molar mass is dissolved in the organic solvent dimethylformamide (C3H7NO) at 25…

A: Answer:Here:

Q: The freezing point of a liquid will change when a solute is added. Explain how the addition of salt…

A: Freezing point depression of a solution means addition of a solute to a solvent lowers the freezing…

Q: The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the…

A: Answer: This question is based on Raoult's law.

Q: The Rast camphor method is a cryoscopic technique for molar mass determination. Exactly 1.00 g of an…

A:

Q: The molal freezing point depression constant K-1.95 °C-kg-mol for a certain substance X. When 17.0 g…

A: Consider the given information as follows; Kf = 1.95 °C.kg.mol-1Mass of urea (solute) = 17.0 gMass…

Q: It is desired to prepare 2.5 m^3 of a 60 mol percent methanol - water solution. Determine the…

A: Methanol = 45 837.39 m3Water = 23 910 m3Explanation:Given:Volume of solution (Vsolution) = 2.5…

Q: When 1.38 g of a certain molecular compound X are dissolved in 90.0 g of cyclohexane (C,H,,), the…

A: The molality of a component is expressed as the ratio of the mass of solute to the mass of solvent…

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.