1. A 1.260 g sample contains only vitamin C (C6H8O6) and sucralose (C12H19Cl3O8). When the sample is dissolved in water to a total volume of 44.8 mL, the osmotic pressure of the solution is 3.15 atm at 303 K. What is the mass percent of vitamin C and sucralose in the sample?

Vitamin C: __% sucralose:___%

2. A metal, M, of atomic mass 56 amu reacts with chlorine to form a salt that can be represented as MClx. A boiling point elevation experiment is performed to determine the subscript , and therefore, the formula of the salt. A 35.7 g sample of the salt is dissolved in 100.0 g of water and the boiling point of the solution is found to be 377.48 K. Find the formula of the salt. Assume complete dissociation of the salt in solution.

formula:___

3. When 2.31 g of a nonelectrolyte solute is dissolved in water to make 465 mL of solution at 28 C, the solution exerts an osmotic pressure of 875 torr.

What is the molar concentration of the solution?

concentration:___M

How many moles of solute are in the solution?

moles of solute:___mol

What is the molar mass of the solute?

molar mass:___g/mol