A 2.0 g sample containing MnO is treated with HCl liberating Cl . The Cl gas is passed into a soluti — Redox Reactions and Volumetric Analysis Chemistry Question

Question

A 2.0 g sample containing MnO is treated with HCl liberating Cl . The Cl gas is passed into a solution of KI and 60.0 mL of 0.1 M Na S O is required to titrate the liberated iodine. The percentage of MnO in the sample is ____. (Nearest integer) [Atomic masses (in u) Mn = 55; Cl = 35.5: O = 16, I = 127, Na = 23, K = 39, S = 32] 2 2 2 2 2 3 2