or, \(\frac{10 \times 0.05}{1000} \times 5=\frac{10 \times {M}}{1000} \times 2\)
\(\therefore\) Conc. of oxalic acid solution \(=0.125 \,{M}\)
\(=0.125 \times 126\, {~g} / {L}=15.75 \,{~g} / {L}\)
\(=1575 \times 10^{-2}\, {~g} / {L}\)
મોલર દળ $N =14\,g\,mol ^{-1} ; O =16\,g\,mol ^{-1} ; C =12\,g\,mol ^{-1} ; H =1\,g\,mol ^{-1}$;
$($ મોલર દળ $Fe=56\, g\, mol^{-1}$, $Cl=35.5\, g\, mol^{-1})$