A solid sample containing some Fe^2+ ion weighs 1.062 g. It requires 24.12 mL 0.01562 m KNno4 to titrate Fe^2+ in the dissolved sample to a pink end point
5 Fe2+ + MnO4-+ 8H+ = 5 Fe3+ + Mn2+ + 4 H2O
a) moles MnO4- = 0.03644 L x 0.0244 M= 0.000899
b) moles Fe2+ = 5 x 0.000899= 0.00450
c)How many grams of iron are there in the sample?
d) What is the precent of Fe in the sample