The boiling point of water is 100.00 °C at 1 atmosphere. A student dissolves 14.11 grams of sodium nitrate, NaNO3 (85.00 g/mol), in 263.2 grams of water. Use the table of boiling and freezing point constants to answer the questions below. Solvent Formula Kh (°C/m) Ke (°C/m) Water H20 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHC13 3.67 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 The molality of the solution is m. The boiling point of the solution is °C.

Q: The normal freezing point of a certain liquid X is -6.3 °C, but when 23.40 g of urea ((NH,) CO are…

A: Normal freezing point of liquid, X = -6.3°C Mass of urea = 23.40g Mass of X = 750.0g

Q: Find the vapor pressure of an aqueous (water as the solvent) solution in which the mole fraction of…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: T OR F The boiling and freezing temperature of a liquid is affected by the amount of solute added…

A: The boiling point is the temperature at which the vapor pressure of a liquid equals the external…

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 prepared where 12.6 g of nonvolatile solute (80.30 g/mol, nonelectrolyte) is added to…

A: A solution is prepared where 12.6 g of nonvolatile solute (80.30 g/mol, nonelectrolyte) is added to…

Q: Assuming 100% dissociation, calculate the freezing point (Tr) and boiling point (T) of 2.14 m…

A:

Q: The molar mass of unknown molecular compound is determined using freezing point depression. The…

A: Freezing point (Tf) - Temperature at which vapor pressure of solid exactly equals to vapor pressure…

Q: When 32.4 g of a certain molecular compound X are dissolved in 65.0 g of benzonitrile (C,H,CN), the…

A: we have to calculate the molar mass of X

Q: The normal freezing point of a certain liquid X is –7.20 °C, but when 18. g of alanine (C,H,NO,) are…

A: Depression in freezing point is colligative property. The formula used to calculate depression in…

Q: Explain on a particle basis why the vapor pressure of a solution is lower than a pure solvent

A: Colligative properties Properties that depend on the number of particles present, not on the…

Q: A mixture of ethanol and 1-propanol behaves ideally at 36°C and is in equilibrium with its vapor. If…

A:

Q: The molal boiling point elevation constant K,=1.00 °C kg mol -1 for a certain substance X. When 38.…

A:

Q: Calculate the boiling point elevation and freezing point depression of a 3.0 m solution of sucrose…

A:

Q: 2) What is the molality of solution that contains 50 g ethanol (C,H,OH) in 325 g water? The molality…

A: Mass of enthanol=50g:   mass of solvent=325g Molecular mass of ethanol=46.07g/mol i.e, 46.07g/mol…

Q: the partial pressure of acetyl bromide vapo

A:

Q: A 10% solution (by mass) of sucrose in water has freezing point of 269.15 K. Calculate the freezing…

A: Colligative properties explain the physical change observed on the addition of solute to solvent.…

Q: If 102.6 mL of water is shaken with oxygen gas at 1.8 atm, it will dissolve 0.0034 g O2. Estimate…

A: Henry law: This law states that the concentration of a gas dissolved in a liquid depends on the…

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 molal boiling point elevation constant K=1.23 °C-kg-mol solution boils at 114.3 °C. Calculate…

A: Given,The mass of substance X = 250. gThe mass of urea ( (NH2)2CO ) =10. gThe boiling point of the…

Q: The addition of 0.125 g of an unknown, non-ionic compound to 100 g of cyclohexane lowered the…

A: Since lowering in freezing point is given by  lowering in freezing point = Kf X m…

Q: 13) ** Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar…

A: Formula used to calculate the freezing point of solution in case of freezing point depression is…

Q: Prove the statement that an alternative way to express Henry's law of gas solubility is to say that…

A: Henry law explains the solubility of a gas in liquid solution by partial pressure and mole fraction…

Q: When 18.6 g of a certain molecular compound X are dissolved in 30.0 g of benzene (C6H), the freezing…

A:

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: At 300°K, the vapor pressure of pure benzene (C6H6) is 0.1355 atm and the vapor pressure of pure…

A: The solution is given in below image:

Q: Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10Hg, molar mass =…

A: Given:Mass of napthalene (C10H8) = 78.8 gMolar mass of (C10H8) = 128.16 g/molDensity of benzene =…

Q: (a) Calculate the vapor pressure at 45°C for a solution that contains 46.0% of propanol and 54.0%…

A: A)By looking at the given table, it is clearly evident that solution of water-propanol having 0.54…

Q: What are the boiling point and freezing point of a 1.47 m solution of naphthalene in benzene? Note:…

A: Here, we have to find the boiling and freezing point of a solution of 1.47 m solution of naphthalene…

Q: What is the freezing point of an aqueous calcium sulfate solution prepared by mixing 45.0 g of…

A: The freezing point of a solution is always less than that of the pure solvent. The freezing point…

Q: What is the freezing point (°C) of a solution prepared by dissolving 13.5 g of (NH4)2SO4 (formula…

A: Mass of Mass of water = 100 gThe molal freezing point depression constant for water =

Q: The normal freezing point of a certain liquid X is 0.60°C, but when 0.14 kg of barium hydroxide…

A: Given : Mass of barium hydroxide, Ba(OH)2 i.e solute = 0.14 Kg = 140 g         (since 1 Kg = 1000 g)…

Q: You have a sucrose solution of 28°Brix or 28 grams of sugar per 100 grams solution in a ripe grape…

A:

Q: Consider the sugar–water phase diagram of Figure 9.1. Initially, saturated liquid solution 900 g of…

A: The explanation is given below-

Q: An experiment was conducted to determine the effect of glucose on the freezing point of water.…

A: Moles of glucose =massmolar mass                             = 1.0180.16=0.0055506 mol Molarity of…

Q: The freezing point depression constant for benzene is 5.06 °C/m and the freezing point of pure…

A:

Q: The normal boiling point of a certain liquid X is 111.60 °C, but when 0.13 kg of potassium bromide…

A:

Q: Raoult’s Law states: the vapor pressure (Psolution) of a solution is proportional to the mole…

A: Moles of glycerol =  1.00 Moles of water = 4.00vapor pressure of water is 25.0 torr

Q: When 127. mg of a certain molecular compound X are dissolved in 55.0 point of the solution is…

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

Q: a. Freezing point of pure water, Tf = 0 °C Freezing point of solution, Tf = -0. 34 °C Freezing point…

A: The molar mass of sucrose from the above given data is calculated as follows:

Q: What is the composition of a methanol –propanol  solution that has a vapor pressure of 85.7 torr at…

A: Given: The vapor pressure of the solution (P) is 85.7 torr The vapor pressure of pure methanol (PA)…

Q: When 4.59 g of a certain molecular compound X are dissolved in 35. g of dibenzyl ether 0.9 °C.…

A:

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.