Question

When 0.1126g of pure iron wire was completely dissolves in H2SO4, the resulting acidic solution required 21.06 cm^3 of a solution of KMnO4 for complete reaction. What was the concentration of the KMnO4 solution?.

Answer 1

Are you familiar with mole concept? The problem revolves around finding the moles of Iron sulphate used up to produce a solution balanced by the same number of moles of KMnO4. FIrst write down the complete balanced equation for both the reactions. then use moles = Concentration (Molarity) * Volume and solve for the unknown concentration.

Answer 2

i figured it out, I just hadn't realized the relationship between the amount of iron wire and the balanced equation. But thank you