MDCAT Chemistry MCQ #454

A laboratory technician titrates 0.01 moles of ethanal with 0.1 M acidified potassium permanganate solution. What volume of KMnO4 is required?

MDCAT Chemistry MCQ #454

  1. Question 1

    Q1. A laboratory technician titrates 0.01 moles of ethanal with 0.1 M acidified potassium permanganate solution. What volume of KMnO4 is required?

    • A) 10 mL
    • B) 20 mL
    • C) 40 mL
    • D) 100 mL

    Answer: 40 mL

    Explanation: The redox ratio between ethanal and KMnO4 is 5:2; 0.01 moles of ethanal require 0.004 moles of KMnO4, equaling 40 mL.