20. Solution to Chemistry Problem

20. Solution to Chemistry Problem

44. 50.00 ml of K4Fe(CN)6 solution were added to a solution obtained by dissolving 0.1224 g of zinc white, and 12.82 ml of ZnSO4 solution were used to titrate the excess. Calculate the mass fraction (%) of ZnO in the white if T(K4Fe(CN)6) = 0.008517, and 1.00 ml of it is equivalent to 1.18 ml of ZnSO4 solution (K2Zn3[Fe(CN)6]2 is formed during titration).

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