Question

Based on the balanced chemical equation shown below, determine the mass percent of Fe3+ in a sample of iron ore, if 22.40 mL of a 0.1000 M stannous chloride, SnCl2(aq), solution is required to completely react with theFe3+ present in the ore sample. The chemical equation for the reaction is
2 Fe3+(aq) + Sn2+(aq) -> 2 Fe2+(aq) + Sn4+(aq).
A) 5.365%
B) 8.396%
C) 16.79%
D) 33.58%

Answer

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