It is more convenient to obtain the molecular mass of an unknown solute by measuring the freezing po — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

For common solvents like water, the cryoscopic constant ($K_f = 1.86 \text{ K kg mol}^{-1}$) is significantly larger than the ebullioscopic constant ($K_b = 0.52 \text{ K kg mol}^{-1}$). Thus, freezing point depression provides a larger, more easily measurable temperature change for the same concentration. Therefore, correct answer is B.