Based on the balanced chemical equation shown below,determine the mass percent of Fe3+ in a 0.6450 gram sample of iron ore,if 22.40 mL of a 0.1000 M stannous chloride,SnCl2(aq) ,solution is required to completely react with the Fe3+ present in the ore sample.The chemical equation for the reaction is: 2 Fe3+(aq) + Sn2+(aq) → 2 Fe2+(aq) + Sn4+(aq) .
A) 6.196%
B) 9.697%
C) 19.40%
D) 38.79%
Correct Answer:
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