A wire weighing 0.100g and containing 99.78% Fe is dissolved in HCl. The iron is completely oxidized to Fe3+ by bromine water. The solution is then treated with tin (II) chloride to bring about the reaction:
Sn2+ + Fe3+ ? Sn4+ + Fe2+
If 9.47mL of tin (II) chloride solution is required for complete reaction, what is its molarity?
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