Chemistry - Liquid Solution Question with Solution | TestHub

(A) $\Delta T_f=i\times K_f\times m$

$$im=0.3(P)im=0.1\times 3=0.3$$

(B) $\Delta T_b=0.28\times K_b$

$$\begin{array}{ll}i\times m=0.28& (Q)i\times m=2\times 0.14\\ (R)[1+(n-1)\alpha ]m=[1+(2)0.9]0.1=2.8\times 0.1=0.28& (S)i\times m=1\times 0.28=0.28\end{array}$$

(C) $\pi =icRT$

$i\times c=0.19(T)0.1mHA$

$$\begin{array}{rl}{K}_a& =0.81\\ K_a& =\frac{C{\alpha }^2}{1-\alpha }\\ \alpha & =0.9\\ i& =1+(n-1)\alpha \\ i& =1.9\end{array}$$

(D) $\frac{P-P}{P}=\frac{n_{solute}}{n_{solute}+n_{solvent}}=\frac{\Delta T_f/K_f}{\frac{1000}{18}+\frac{\Delta T_f}{K_f}}$

When the weight of solvent is $1kg=1000$ gram, $n_{Solute}=\frac{\Delta T_f}{K_f}$