A sample of hydrazine sulphate `(N_2H_6SO_4)` was dissolved in 100 " mL of " water. 10 " mL of " this solution was reacted with excess of `FeCl_3` solution and warmed to complete the reaction. `Fe^(2+)` ions formed were estimated and they required 20 " mL of " `(M)/(50)KMnO_4` Solution. Estimate the amount of hydrazine sulphate in 1 L of solution.
Reactions:
`4Fe^(3+)+N_2H_4toN_2+4Fe^(2+)+4H^(o+)`
`MnO_4^(ɵ)+5Fe^(2+)+8He^(o+)toMn^(2+)5Fe^(3+)+4H_2O`