Practice Problem 7

Determine the molecular weight of acetic acid if a solution that contains 30.0 grams of acetic acid per kilogram of water freezes at -0.93^oC. Do these results agree with the assumption that acetic acid has the formula CH₃CO₂H?

Answer

60 g/mol; This is in agreement with the molecular weight expected if the formula for acetic acid is CH₃CO₂H.