Answer to Question #269357 in General Chemistry for leo

Question

A mixture of ethanol, C2H5OH, and water has a freezing point of −16.0 °C.

(a) What is the molality of the alcohol?

(b) What is the weight percent of alcohol in the solution?

Answer 1

Depression in freezing point is denoted by,

Freezing point of water + Freezing point of solution

From the given data

But

Where freezing point depression constant

for water