Acetone (mw = 58.08, P 25°C =232 mmHg) and butanone (mw = 72.11, P 25 °C =100 mmHg) have the indicated molar masses and vapor pressures. A container holds 1.00 kg of butanone. How much acetone must be added to the butanone to elevate the total vapor pressure over the mixture to 125 mmHg at 25°C?

Question

Quizplus · Accepted Answer

Using Raoult's Law and the given vapor pressures, the amount of acetone needed to achieve a total vapor pressure of 125 mmHg can be calculated to be approximately 188 g.

Acetone (Mw = 58