Answer to Question #287207 in General Chemistry for Nik Nik

Question

What is the vapor pressure of an aqueous solution that has a solute mole fraction of 0.1000? The vapor pressure of water is 25.756 mmHg at 25 °C. The solution has 1 mole in total.

Answer 1

Mole fraction of water $=1-0.1=0.9$

Vapour pressure of water $0.9×25 .756$

$=23.18mmHg$