Question $2$

A $100k\frac{g}{h}$ Acetone $($C$)$ is to be extracted from an aqueous solution using TCA $($trichloroethane$-$B$)$ as a solvent at $25C$ in a continuous counter$-$current system. The extract composition $($E$)$ is $7\%A,13\%B$ and $80\%$ C $($all in mass fraction$),$ and the composite of the raffinate composition $($R$)$ is $44\%A,37\%$ B and $19\%$ C$.$ Calculate:

$2\mathrm{.}1.$ The distribution coefficient $($K$).$

$2\mathrm{.}2.$ The selectivity $($separation factor$).$

$(3)$