different solutions where made in the laboratory a) 0.1 mole of sodium chloride in 100 mL of water (M.W.= 58.44 g/mol) b) 0.1 mole of calcium chloride in 100 mL of water (M.W.= 110.98 g/mol) c) 0.1 mole of ammonia in 100 mL of water (M.W.= 17.03) Order the solutions in increasing freezing point (from lowest to highest). Show all your work.

please help with the following questiong

The freezing point of benzene C6H6 is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is DDT. How many grams of DDT, C₁4H9C5 (354.5 g/mol), must be dissolved in 227.0 grams of benzene to reduce the freezing point by 0.300°C ? g DDT.

Determine the freezing point of a solution (in ℃) that contains 42.2 grams of glycerin (C3H8O3 ) in 511 mL of water. (kf=1.86 ℃/m) a. -0.600 b. -0.553 c. -1.67 d. -0.205 e. -0.187

34.1 % (NH4 )2SO4   (molar mass = 132.1 g mol−1) has a density of 1.15 g mL−1. What is the molarity of this solution?  (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation--examples include 1.23 and 120. and -123 and 123. and 12.3)     Determine the boiling point of a solution that contains 78.5 g of compound W (molar mass = 132.5 g mol–1) dissolved in 1088.6 g benzene (C6H6; molar mass = 84.156 g mol–1; Kb = 2.53 °C m–1; boiling point of pure benzene = 80.1 °C). (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation--examples include 1.23 and 120. and -123 and 123. and 12.3)

6. Ethylene glycol [CH₂(OH)CH₂(OH)] is a common automobile antifreeze. It is water soluble and fairly nonvolatile (b.p. 197°C). Calculate (a) the freezing point and (b) the boiling point of a solution containing 268 g of ethylene glycol in 1015 g of water.

Calculate the freezing point of a solution that contains 168.4 g of sucrose (table sugar) in 300. g of water. One mole of sucrose is 342 g. Kf for H2O = 1.86°C/m -0.185 oC -3.05 oC -0.558 oC -0.744 oC -1.24 oC

A solution is prepared by adding 101 g of lactose (milk sugar) to 102 g of water at 55 °C. The partial pressure of water above the solution is __________ torr. The vapor pressure of pure water at 55 °C is 118 torr.  The MW of lactose is 342.3 g/mol.

Caffeine, C8H₁0 N4O₂, is a stimulant found in tea and coffee. A sample of the substance was dissolved in 45.0 g of chloroform, CHCl3, to give a 6.27 × 10-² m solution. -2 How many grams of caffeine were in the sample? g

1.Calculate the molarity of a solution that contains 126.8 g NaCl in 2.800 L of water. 2. Calculate the freezing point depression for a solution of 78.5 g toluene (C7H8) in 245 mL phenol (d = 1.07, Kf = 7.40 C/ m).