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Final Concentration

APCHEM-MDYNUI

Consider the following titration reaction:

$$2H_2O + 4MnO_4^-+3ClO_2^-→ 4MnO_2^+ + 3ClO_4^- + 4OH^-$$

Which of the following is the final concentration of $ClO_4^-$ ion if 15 mL of the chlorite solution is titrated to the endpoint with 20. mL of 0.20 M $KMnO_4$ solution?

A

0.086 M

B

0.11 M

C

0.20 M

D

0.36 M