QUESTION: The following data were collected for the analysis of the iron oxalate product for oxalate. The molarity of the $KMn{O}_4$ titrant was $0\mathrm{.}01041M.$

Table $1$: Analysis of Iron Oxalate Product for Oxalate

$\backslash$table$[[,$Trial $1,$Trial $2],[$Mass of weigh boat $+$ iron oxalate product $/$g$,0\mathrm{.}7521,0\mathrm{.}7871],[$Mass of "emptied" weigh boat $\frac{?}{g},0\mathrm{.}6123,0\mathrm{.}6445],[$Mass of iron oxalate product $\frac{?}{g},0\mathrm{.}1398,0\mathrm{.}1426],[$Initial Buret Reading $\frac{?}{mL},1\mathrm{.}11,2\mathrm{.}36],[$Final Buret Reading $\frac{?}{mL},37\mathrm{.}13,38\mathrm{.}95],[$Volume $KMn{O}_4$ dispensed $\frac{?}{mL},36\mathrm{.}02,36\mathrm{.}59]]$

a$)$ Calculate the moles of oxalate, $C_2{O}_4^{2-},$ in each titrated sample of the iron oxalate compound. Show one sample calculation and give the values of the other trial.

b$)$ Calculate the average moles of oxalate, $C_2{O}_4^{2-},$ per gram of the iron oxalate compound.