Chemistry - Liquid Solution Question with Solution | TestHub

When $20\mathrm{g}$ of naphthoic acid $\left({\mathrm{C}}_{11}{\mathrm{H}}_8{\mathrm{O}}_2\right)$ is dissolved in $50\mathrm{g}$ of benzene $\left(K_f=1.72\mathrm{K}\mathrm{kg}{\mathrm{mol}}^{-1}\right)$, a freezing point depression of $2\mathrm{K}$ is observed. The van't Hoff factor $(i)$ is