Answer to Question #310758 in General Chemistry for Janelle S

Question

1. An organic compound is known to be nonvolatile and non-electrolyte. A 0.35- g sample is dissolved in water and diluted to 150mL. The osmotic pressure is measured as 0.04 atm at 25ºC. The approximate mass number for this compound is 1400g/mol. From the data provided in this problem and knowing that the density of the solution is 1.00g/mL

a. Calculate the freezing point of the solutions

b. Determine if the freezing point change would be a good way to determine the molecular mass of the compound

c. Would the boiling point change be a better determining factor than the freezing point change?

Answer 1

The answer to your question is provided in the image: