What mass of N2H4 can be oxidized to N2 by 24 g of K2CrO4 which is reduced to Cr(OH)4- ?

Moles of K2CrO4 reacted =24194mol4 mol of K2CrO4 reacts with 3mol of N2H4 . ∴ 24194 mol of K2CrO4 reacts with 34×24194mol of N2H4 ∴ Amount of N2H4 reacted = 34×24194 moles = 34×24194× 32 g = 2.969 g.