$12\mathrm{.}5-1.$ Composition of Two Liquid Phases in Equilibrium. An original mixture weighing

$200kg$ and containing $50kg$ of isopropyl ether, $20kg$ of acetic acid, and $130kg$

of water is equilibrated in a mixer$-$settler and the phases separated. Determine

the amounts and compositions of the raffinate and extract layers. Use equilib$-$

rium data from Appendix A$\mathrm{.}3.$