The equation 8KMnO4 + 15H2SO4 -> 8K2SO4 + 15MnSO4 + 7H2O + 5O2.

  1. Detailed information about the chemical equation:

  • This equation describes the redox reaction between potassium permanganate (KMnO4) and concentrated sulfuric acid (H2SO4), producing potassium sulfate (K2SO4), manganese sulfate (MnSO4), water (H2O) and oxygen (O2).

  • According to the equation, 8 moles of potassium permanganate and 15 moles of concentrated sulfuric acid are required to produce 8 moles of potassium sulfate, 15 moles of manganese sulfate, 7 moles of water and 5 moles of oxygen.

  1. Reaction conditions:

This reaction requires high temperature and concentrated sulfuric acid to act as a catalyst.

  1. Reaction process:
  • When heated, potassium permanganate reacts with concentrated sulfuric acid, reducing itself and oxidizing H2SO4 to SO2 and H2O.
  • Potassium permanganate continues to reduce itself to MnSO4, during this process, oxygen is released.
  1. Observations:
  • Potassium permanganate has a deep purple color, which gradually fades during the reaction and the light pink color of Mn2+ appears.
  • When heated, oxygen gas is released.
  • Potassium sulfate and manganese sulfate precipitate as a white solid.

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