A solution is prepared by dissolving 8.00 g of glycerin (C3H8O3) in 201 g of ethanol (C2H5OH). The freezing point of the solution is ________°C. The freezing point of pure ethanol is -114.6 °C at 1 atm. The molal-freezing-point-depression constant (Kf) for ethanol is 1.99 °C/m. The molar masses of glycerin and of ethanol are 92.1 g/mol and 46.1 g/mol, respectively.-122.20.860-113.7-115.5-107.0

Q: Consider an aqueous solution containing 1.0 g/L of a protein (molar mass 8.1x10^4 =  g/mol) with a…

A: Mass of protein = 1 g Volume of solution = 1 L Temperature = 25°C Depression in freezing point = ?…

Q: What is the freezing point of a solution prepared by dissolving 63.49 g of glycerin (C3H3O3) in…

A: The freezing point of pure ethanol is -114.1˚C. The amount of glycerin added to 100 g of ethanol is…

Q: A chemist wants to determine the molar mass of a naturally occurring substance isolated from…

A: Given, Pressure of the solution, Psolution = 0.2464 atmPressure of the Acetone, Pacetone = 0.2630…

Q: The normal freezing point of a certain liquid X is -2.7 °C, but when 12.2 g of urea ((NH,),CO) are…

A:

Q: 14. Certain compounds are known to “dimerize” in solution – this means that the intermolecular…

A: The depression in freezing point is given by  ΔTf = i * Kf * molality where ΔTf = depression in…

Q: The normal freezing point of a certain liquid X is -0.70 °C, but when 19. g of sodium chloride…

A: Given ,Normal freezing point of certain liquid, X Mass of NaCI = 19. gMass of X = 850. gObjective…

Q: Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its…

A: Given Kf for water is 1.86 °C･kg/mol Freezing point of ethylene glycol  =  -3.60 °C Freezing point…

Q: 29 g of KOH is dissolved in 250. mL of water. What is the mass percent of KOH in this solution?…

A: Hence you posted multiple choice questions, I will answer the first three sub questions. (1) mass of…

Q: 1. The freezing point of pure benzene (C₆H₆) is 5.49 °C. The freezing point of a solution made using…

A: Given that freezing point of pure benzene (C₆H₆) is 5.49 °C The freezing point of a solution = -13.0…

Q: Ethylene glycol (C₂H₆O₂) is used as an additive to the water in your automobile to lower its…

A:

Q: Calculate the freezing point of a solution of 40.0 g methyl salicylate, C 7H 6O 2, dissolved in 800.…

A:

Q: 148 gimol 3.82 x 103 73.9 g/mol 80 g/mol * 00 00 O000

A:

Q: 5. The boiling point of benzene is 80.1°C and K for benzene 5.12°C/m. When 0.715 g of an unknown…

A:

Q: Consider an aqueous solution containing 1.0 g/L of a protein (molar mass = 8.4 x 10ʻ g/mol) with a…

A: Given: Temperature, T = 25°C = 298.15 K Mass concentration of the protein = 1.0 g/L Molar mass of…

Q: 10.0 g of an organic substance is dissolved in 80.0 g of benzene. The freezing point of the solution…

A: Mass of benzene = 80.0 g = 0.080 Kg mass of organic solute = 10.0 g Freezing point of this solution=…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Molar Mass of napthalene (C10H8) = 128 g/mol Molar mass of pyrene (C16H10) = 202 g/mol Mass of…

Q: A solution is prepared by dissolving 215 g of methanol, CH3OH, in 1000 mL of water. What is the…

A: Depression in the freezing point is a colligative property. When we dissolve a non-volatile solute…

Q: 1) A solution containing 10.0 g of an unknown molecular liquid and 90.0 g water has a freezing point…

A:

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

A:

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

A: When a solute is dissolved in the water, the vapor pressure of the solution is lower than the pure…

Q: 3. A solution is prepared by dissolving 26.43 g of ammonium sulfate in enough water to make 225.0 mL…

A: Introduction:  Concentration in terms of molarity is defined as the moles of solute present per…

Q: 4. A compound contains 42.9% C, 2.4% H, 16.6% N, and 38.1% O by mass. The addition of 3.16 g of this…

A:

Q: An aqueous solution is prepared by dissolving 72.0 g glucose (180.18 g/mol) in enough 1. water to…

A: Number of moles of glucose (solute) is calculated as follows,

Q: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. What is the vapor pressure of…

A: 1. A solution contains 15.37 grams of NaCl in 0.621 kg water at 25 °C. We have to calculate the…

Q: An aqueous solution containing 35.6 gg  of an unknown molecular (non-electrolyte) compound in 150.1…

A: Given, mass of the compound = 35.6 g mass of water = 150.1 g = 0.1501 kg Freezing point of the…

Q: The freezing point of ethanol (C,H,OH) is -114.6 °C. The molal freezing point depression constant…

A: Calculate the moles of glycerin,

Q: An aqueous solution is formed by dissolving 2.000 g of Na3PO4 (163.941 g/mol) in enough water to…

A: Given, Mass of Na3PO4 dissolved= 2.000g Molar mass of Na3PO4= 163.941 g/mol Volume of solution= 10ml…

Q: What is the freezing point of a 1,4-dioxane solution if that same solution boils at 103.0 °C? The…

A: From the formula of elevation in boiling point, and depression in freezing point, we can solve the…

Q: A solution made by dissolving 150.0 g of an unknown compound in 320.0 mL of benzene to make a…

A: Density of benzene =  0.877 g/mL Volume of benzene = 320.0 mL Density = Mass / Volume so, Mass of…

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: 15.2 g of camphor dissolved in naphthalene lower the freezing temperature of naphthalene from 80.0…

A: Given: Mass of camphor=15.2 g Molar mass of camphor=152 g/mol Lowered freezing point of…

Q: Ethylene glycol, HOCH2CH2OH, is a common automobile antifreeze. It is water-soluble and fairly…

A:

Q: A solution is prepared by dissolving 215 g of methanol, CH3OH, in 1000 mL of water. What is the…

A: To solve this problem first we have to find the number of moles of methanol  then molality of the…

Q: When 3.14 g of a nonelectrolyte solute is dissolved in water to make 325 mL of solution at 22 °C,…

A: Given ,  Mass of non electrolyte (w) = 3.14 g Volume of solution (V) = 325 mL = 0.325 L Temperature…

Q: A solution is prepared by dissolving 5.88 g of an unknown nonelectrolyte in enough water to make…

A:

Q: mol/(L'atm) when dissolved in benzene at 25°C. How many grams of CH4 will dissolve in 1.00 L of…

A: Introduction :  We have to calculate the mass of methane .

Q: A solution that contains 5.50 g of ferrocene [a non-electrolyte, molar mass = 186.0 g/mol] dissolved…

A: Given data, Mass of ferrocene = 5.50 g Molar mass = 186.0 g/mol Mass of solvent = 75.0 g = 0.075 Kg…

Q: Calculate the vapor pressure above a solution prepared by dissolving 2.00 g of aspirin (C9H8O4) in…

A:

Q: Exactly 9.96 g of an unknown substance is dissolved in 2.50 x 102 g water. The freezing point of…

A: You will need to use the equation:      •       ΔTf = i Kf m , where , ΔTf = how much the freezing…

Q: A solution is prepared by dissolving 2.00 g of glycerin (C3H8O3) in 201 g of ethanol (C2H5OH). The…

A:

Q: Molality   A solution contains 22.5 g of methanol, CH3OH, dissolved in sufficient water to give a…

A: Molality of a solution is calculated by dividing the number of moles of solute by per kilogram of…

Q: When 10.1 g of an organic compound known to be 54.53% C, 9.2% H, and 36.32% O by mass is dissolved…

A: Given information: Percent of carbon = 54.53% percent of hydrogen = 9.2% Percent of Oxygen = 36.32%…

Q: A solution is made by adding 2.190 mol of sucrose, a nonelectrolyte, to 430 g of water. Calculate…

A: Given data,Moles of sucrose=2.190molesMass of water=430g=0.430KgKf=1.86oC/m

Q: If the freezing point of the solution was observed to be -8.6 °C, and the normal freezing point of…

A: Given: Freezing point of solution = -8.6 oC The freezing point of pure solvent i.e. cyclohexane=…

Q: Determine the molal concentration of NaCl solution in water that has a freezing point of -2.1 degree…

A: Recall the data, Kf for water=1.86 °Cm Freezing point of solution=-2.1°C Molal concentration of…

Q: A 6.06-gram sample of a compound is dissolved in 250. grams of benzene. The freezing point of this…

A: Given: The mass of the unknown compound dissolved in benzene = 6.06 g The mass of benzene = 250 g…

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.