In neutral or faintly alkaline medium, MnO ₄⁻ oxidizes I ⁻ to iodate. What is the number of moles of KMnO ₄ required to completely convert 1 ~L of 0.5 M KI to iodate?

Step-by-step solution

Thus, according to the balanced equation, 1 mole of KI or I ⁻ requires 2 moles of KMnO ₄ or MnO ₄⁻ . Therefore, 1 0.5=0.5 moles of I ⁻ would require 2 0.5=1.0 moles of KMnO ₄ .