Question

The vapour pressure of water is 12.3 kPa at 300 K. Calculate vapour pressure
of 1 molal solution of a non-volatile solute in it.
$Calculate the mass of a non-volatile solute in it​

Answer 1

Explanation:

The vapour pressure of water is 12.3 kPa at 300 K. Calculate vapour pressure of 1 molal solution of a non-volatile solute in it. 1 molal solution means 1 mol of the solute is present in 1000 g of the solvent (water). x2 = 1 / (1+55.56) = 0.0177.