At 50°C, the solubility of KCL in water is 42.6 g in 100 g water. What is the molality of KCL in water?

Calculate the molality of a sucrose solution made by dissolving 26.8 grams sucrose into 93.6 grams water. The molar mass of sucrose is 342.2 g/mol.

3.What is the molality(m) of a solution made from dissolving 179g.of MgCl2 into 1.OOL of water?

4. It is found that 0.220 g of a certain polymer dissolved in enough water to make 300 mL of solution has an osmotic pressure of 0.745 torr at 20 °C. Determine the molecular mass of the polymer.

The freezing point of pure benzene (CoHo) is 5.49 °C. The freezing point of a solution made using toluene (C-Hs) in benzene is determined to be -13.0 °C. What is the molality of the toluene? (Kf benzene = 5.12 °C/m)

A solution is made up by dissolving 15.0 g MgSO4.7H₂O in 60.0 g of water. What is the molality of MgSO4 in this solution? Molality = | m

when a certain amount of CuCl2 is added to water, the freezing point lowers by 8.5 degrees . What is the molality of the copper(ll) chloride? (Kf water = 1.86 degrees C/m)

a) An amount of 7.5 g polymer A is dissolved in 150 mL water. At 25.0 °C, the osmotic pressure of the solution is 0.272 atm. Determine the molar mass of polymer A.

Use the graph to estimate the solubility of NANO3 in water at 40 °C. * Effect of temperature on solubility 160 KNO, 140 NANO, 120 100 KBr- 80 NH,CI 60 Na,So, 40 NaCI 20 10 20 30 40 50 60 70 80 90 Temperature (°C) 68 g/100 g H20 O 77 g/100 g H20 96 g/100 g H20 O no solubility Concentration (g/100 g H;0)

A solution of 0.890 g of an organic compound in 100.0 g of benzene has a freezing point of 5.107°C. What are the molality of the solution and the molar mass of the solute? The normal freezing point of benzene is 5.500°C and the Kf for benzene is 5.12°C/m. molality molar mass = g/mol