A 300 ML Sample of Solution Containing Fe²⁺ Requires 25

question 96

Multiple Choice

A 30.0 mL sample of solution containing Fe²⁺ requires 25.0 mL of 0.0200 M KMnO₄ solution to react completely. The products of the reaction are Fe³⁺ and Mn²⁺. What is the concentration of Fe²⁺ in the original solution?

• A) 3.33×10 ^{- 3} M
• B) 1.67×10 ^{- 2} M
• C) 8.33×10 ^{- 2} M
• D) 0.500 M
• E) none of these

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