Question
Chemistry Question on Chemical Reactions of Alcohols Phenols and Ethers
20 mL of 0.02 M K2Cr2O7 solution is used for the titration of 10 mL of Fe2+ solution in the acidic medium. The molarity of Fe2+ solution is ______×10-2 M. (Nearest integer)
Answer
Applying the law of equivalence,
milliequivalents of Fe2+ = milliequivalents of K2Cr2O7
10 × 1 × M = 20 × 6 × .02
M = 24 × 10-2 M
∴ Answer will be 24.