20 mL of 0.02 M K2Cr2O7 solution is used for the titraction of 10 mL of Fe2+ solution in the acidic medium. The molarity of Fe2+ solution is ___________× 10-2 M. (Nearest Integer)
20 mL of 0.02 M K2Cr2O7 solution is used for the titraction of 10 mL of Fe2+ solution in the acidic medium. The molarity of Fe2+ solution is ___________× 10-2 M. (Nearest Integer)
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1 Answer
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Meq of K2Cr2O7 = Meq of Fe2+
(Molarity × Volume × nf) of K2Cr2O7 = (molarity × volume × nf) of Fe2+
0.02 × 20 × 6 = M × 10 × 1
M = 0.24 M
Molarity = 24 × 10-2 M
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