A polyester is made by reacting A$-$A and B$-$B type step comonomers in a polycondensation reaction bringing together a diol $(166\frac{g}{m}ol)$ and a dicarboxcylic acid $(166\frac{g}{m}ol.$ If the diol is the limiting reactant and conversion is reported as $64\%,$ determine:

a$.$ the composition $($in mol $\%)$ of the monomer feed necessary to produce a copolymer with $\frac{?}{\text{b}\text{a}\text{r}}(M{)}_a=351\mathrm{.}0\frac{g}{m}ol$; and

b$.$ the mass of water $($in g$)$ that must be condesned per mole of monomer fed.

darr QUE$2.$pdf

Partial Answer:

a$.43\mathrm{.}4$mol$\%$ diol and $56\mathrm{.}6$mol$\%$ chlacid

b$.10\mathrm{.}0g{H}_{2}O$