Table 11.7.1 Selected Boiling Point Elevation Constants and Freezing Point Depression Constants Ть, °С (at 1 atm) Ko, °C/m Solvent T, °C K, °C/m Acetic acid 118.2 3.13 16.6 -3.73 Benzene 80.1 2.53 5.53 -5.13 Ethanol 78.5 1.20 -114.5 -1.92 Freon"-112 (CCI,FCCI,F) 93 6.21 24.7 -37.7 Naphthalene 218.0 6.08 80.2 -6.9 Water 100 (eхact) 0.512 0 (ехаct) -1.86

Q: Determine the molal concentration of a sugar solution in water that has a freezing point of –2.1°C.…

A: Given information,    Freezing point = –2.1°C    Value of Kf = 1.86°C/m for water

Q: The lattice energy (U) for MgCl2 is -2540 kJ/mol and the enthalpy of hydration for Mg2+ is -1903 kj/…

A: The enthalpy of solution (ΔHsol) can be calculated using the lattice energy and the enthalpy of…

Q: A solution is prepared by combining 5.03 grams of an unknown non-electrolyte with 323.0 grams of…

A:

Q: A solution contains 0.154 mol NaCl and 0.957 mol H,0. Calculate the vapor pressure of the solution…

A: The given problem is based on the relative lowering in vapour pressure which is explained on the…

Q: Calculate the boiling point of a solution containing 18.7 g of potassium phosphate in 150.0 g of…

A: Given Values mass of potassium phosphate = 18.7g Molar mass = 212.27g/mol Moles = 18.7g/212.27g/mol=…

Q: If 2.51 g of a molecular compound  dissolved in 100.0 g of water produces a solution with a freezing…

A: When a solute is added to a solvent, the freezing point of solvent decreases known as depression in…

Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A: Freezing point of pure water = 0.0 °C Mass of water = 100 g = 0.1 kg Change in temperature = ΔT =…

Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A:

Q: A solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0 mL…

A: mass of sulfuric acid, H2SO4 = 17.75 gNote: molar mass of sulfuric acid, H2SO4 = 98.079 g/molThe…

Q: The freezing point of pure water is 0.0°C. How many grams of ethylene glycol (C2H6O2) must be mixed…

A: Mass of solvent water = 100.0 g = 0.1 kg Kf for water = 1.86 °C/m = 1.86 °C. kg/mol) Depression in…

Q: Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated…

A:

Q: 3) 21.0 g of a nonelectrolyte is dissolved in 0.200 kg of water. The resulting solution freezes at…

A: Answer    Freezing point Tf  = Kf  × molality   Molality  = mass…

Q: A solution of a nonelectrolyte solution contains 39.0 g of solute dissolved in 242.0 g of water. The…

A: Given, The freezing point of the pure water, (T0f)=0.0 0C. The given mass of water, (Wa)=242 g=0.242…

Q: 100 mL of water are being added into a beaker containing 200 mL of 1.0 M KNO3 aqueous solution.…

A: Answer:To dilute a solution water is gradually added in it and this added water only changes the…

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: The concentration of NaCl(aq) in a beaker is 2.00 M. What is the molality of the NaCl solution?…

A: The Molarity of NaCl = 2.00 M Means moles of NaCl = 2.00 mol present in volume of 1 L water . So…

Q: A solution of a nonelectrolyte solution contains 39.0 g of solute dissolved in 242.0 g of water. The…

A: Given: The freezing point of pure water, (T0f) = 0.0 0C. The given mass of water, (Wa) = 242.0 g =…

Q: A small amount of acetonitrile (CH₂CN) is dissolved in a large amount of water. Imagine separating…

A: Answer:The enthalpy of a solution is defined as the quantity of heat absorbed or liberated when a…

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: alculate the molality of a solution formed by adding 2.60 g NH4 olality: to 19.1 g of water.

A:

Q: Calculate the molality of a solution formed by adding 2.50 g NH4Cl to 16.7 g of water.

A: Given :- mass of NH4Cl = 2.50 g               Mass of H2O = 16.7 g   To calculate :-  Molality of…

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.