A mixture of solvents contains 5 mol of solvent A and 10 mol of solvent B. Partial molar volume of solvent A is 100 mL/mol in this mixture and partial volume of B is 80 mL/mol. After a small amount of A was added to the mixture, partial molar volume of A increased by 2 mL/mol. How partial molar volume of solvent B changed?

Q: What is the effect of a nonvolatile solute on the vapor pressure of a liquid? Why is the vapor…

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

Q: calculate the mass of copper(II) acetate monohydrate needed to prepare 100.0 mL of 0.1250 soluation…

A: As we know  Molarity = mass/ molar mass * Volume(Lt)

Q: The partial molar volumes of acetone and chloroform in a mixture in which the mole fraction of…

A: Given, The partial molar volume of acetone and trichloromethane in a mixture in which the mole…

Q: A solution is made by dissolving 2.5 mg sodium fluoride (NaF) in 4.5 L of water at 20.0°C. What is…

A: Given: Mass of NaF = 2.5 mg = 0.0025 g                                      (Since 1 g = 1000 mg)…

Q: KI ANANO, 140 130 KNO, 120 110 100 90 80 NH,CI 70 -HCI 60 KCI 50 40 NaCI 30 KCIO, NH, 20 10 SO2 10…

A:

Q: In performing an experiment on freezing point depression, the solution was prepared by dissolving…

A: Given: Mass of salt=2.25 g The volume of solvent=20.00 mL The density of water= 0.997 g mL-1  The…

Q: When 0.279 g of a molecular compound, benzoic acid, was dissolved in 43.0 g of benzene, the freezing…

A: Depression in freezing point :-  When a nonvolatile solute is added to pure solvent then its…

Q: What is the mole fraction of methanol, CH3OH, in an aqueous solution that is 40.0% methanol by mass?…

A:

Q: 3. XYZ, a non-electrolyte, is miscible (highly soluble) with water and its molar mass is 132 g/mol.…

A:

Q: When 1 mol of a nonvolatile nonelectrolyte is dissolved in 4 mol of a solvent, the vapor pressure of…

A:

Q: Use the following information to calculate the molar mass of the unknown Mass of unknown solute =…

A: The relation between depression in freezing point and molality of a solution is given as follows;…

Q: 8.) Calculate the mole fraction of the solute in the solution prepared by allowing 12.9 g of toluene…

A: mass of solute i.e. toluene =12.9 g Molar mass of toulene = 92.14g/mol No. Of moles of solute ,na…

Q: A solution composed of 10.0 g of a nonvolatile organic solute in 100 g of diethyl ether has a vapor…

A: Use the raoult formula to get the answer First convert mass into mole by dividing molar mass Then…

Q: 2. Salt-in effect implies that solubility: a. Remains constant with increase in ionic strength b.…

A:

Q: A student dissolved 20 mg of caffeine in 20 mL of water. The student carried out two extractions…

A: The question is based on the concept of  solvent extraction. We have to calculate amount of caffeine…

Q: In performing an experiment on freezing point depression, the solution was prepared by dissolving…

A:

Q: Solubility Curve for KNO3 150 140 130 120 110 100 KNO3 90 80 70 60 50 40 30 20 10 10 20 30 40 50 60…

A: We have to tell how much KNO3 can be dissolved in 100 g of water .

Q: 9. Separation of two substances by recrystallization depends upon their differences in a.…

A: To explain: Separation of two substances by recrystallization depends upon their differences in…

Q: Distinguish between dispersion methods and condensation methods for preparing colloidal systems.

A: Dispersion methods: that is, by breaking down larger particles. For example, paint pigments are…

Q: What is the effect on vapor pressure of a solution with particularly strong solute–solvent…

A: Vapor pressure is the pressure of vapors that are in contact with its liquid form. In case of…

Q: The CO2 gas sealed inside a carbonated beverage bottle has a pressure of 1.9atm. At this pressure,…

A: According to the Henry's law solubility of a gas is directly proportional to the partial pressure of…

Q: In order to find the molar mass of an unknown compound, a research scientist prepared a solution of…

A:

Q: What is the effect on the vapor pressure of a solution with particularly strong solute-solvent…

A:

Q: A 12.7 g substance was dissolved in 2.00 g of solvent. The molar mass of the unknown substance is…

A:

Q: Which of the following refers to the irreversible aggregation of colloidal particles?…

A:

Q: How much NaCl is needed to make a saturated solution at 100 90 10°C? 80 NaNO, 70 Pb(NO)2 KCI 60…

A: The amount of substance in a solubility curve can be seen by plotting the points at that temperature…

Q: When 10.5 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of benzene, the…

A:

Q: Explain the meaning of the van Hoff factor and its role in determining the colligative properties of…

A: The properties which are dependent on the number of solute particles are termed as Colligative…

Q: Choose the solution with the lowest theoretical freezing point:   0.25m sucrose 0.5m sucrose 1.0m…

A: Freezing point of a solution is that temperature at which the liquid state of a solution converts to…

Q: Suppose that you have a 1:1 mixture of compounds that is comprised of compound X and compound Y. You…

A: The amount of solute which can be dissolved in given amount of solvent is termed as its solubility.…

Q: Why is potassium hydrogen phthalate (KHP) used to standardize the NaOH solution instead of measuring…

A: Given:

Q: At 25°C, the partial molar volume of water in this solution is 17.7 cm mol', and that of methanol is…

A: Partial molar volumes Water = 17.7 cm3/mol Methanol = 38.8 cm3/mol

Q: Three aqueous solution are given calculate the motality for these solutions, 9250 ml. of 2.90 on m…

A:

Q: The molecular weight of an organic compound was determined by measuring the freezing point…

A: The equation that explains the relationship between freezing point depression and molality is:

Q: A solute is a minor component of a solution. For example, if a small amount of benzoic acid is…

A: The term solubility is a chemical property which depicts the ability of a given solute or substance…

Q: The mole fraction of potassium nitrite (KNO2) in a solution is 0.0194. The solution density is…

A: Solution                            Given that  Mole fraction of potassium nitrite = 0.0194…

Q: Three elements such as GGG, SSS, and AAAA form a solid solution mixture. This solid mixture…

A: Percentage composition of mixture = 15% GGG + 60% SSS and rest AAA. Molar mass of GGG = 72.59 g/mol…

Q: The dispersed phase of a certain colloidal dispersion consistes of spheres of diameter 1.0 x 102 nm.…

A: The diameter of colloidal sphere (d) = 1.0 ×102 nm.…

Q: molecular weight

A:

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

A: Given: Freezing point of benzene = 5.500 °C  Freezing point of solution = 4.500 °C  Mass of compound…

Q: In a mixed solvent system, what is the role of the "poor" solvent? a.to DECREASE the solubility of…

A: The correct option is b .

Q: Calculate the freezing point depression of a solution containing 0.125 mol of NaCl dissolved in…

A: Given : Moles of NaCl = 0.125 mol. And mass of water = 0.250 Kg Since water is present in excess…

Q: Calculate the mole fraction and the molality of 65.0g NaCl in 300g H2O

A:

Q: You have a solution which is 49.0% by mass isopropyl alcohol (MM = 60.11 g/mol) in water. The…

A: Calculate the moles of isopropyl alcohol and water,

Q: The mole fraction of sodium chloride, NaCl, in a saturated aqueous solution is 0,220. What is the…

A: Given that the mole fraction of sodium chloride, NaCl, in a saturated aqueous solution is 0,220.…

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.