What volume of oxygen is produced from the decomposition of 2 mole of KCIO3 at…

Chemistry JAMB 2003

What volume of oxygen is produced from the decomposition of 2 mole of KCIO3 at s.t.p?
[Molar volume of a gas at s.t.p = 22.4 dm3]

  • 22.4 dm3
  • 33.6 dm3
  • 44.8 dm3
  • 67.2 dm3 checkmark

The correct answer is: D

Explanation

2KClO3 → 2KCl + 3O2
3 moles of oxygen is produced
1 moles of oxygen is 22.4 dm3
3 moles of oxygen is 67.2 dm3
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