Question

Molecular mass of a non-volatile solute can be determined by which of the following method?

• A. Cryoscopic method
• B. Victor-Meyer's method
• C. Graham's method
• D. Duma's method

Answer 1

The correct option is A Cryoscopic method

Cryoscopic method is one of the best method used to determine the molecular mass of a non-volatile solute, as

we have,

$\Delta T_f=K_{f}m$

where, $\Delta T_f$ is calculated experimentally and $K_f$ is constant and by using molality we can easily find the molecular weight of solute particle.