The Reaction Below Is First Order in [H₂O₂]

question 9

Multiple Choice

The reaction below is first order in [H₂O₂]:
2H₂O₂ (l) - 2H₂O (l) + O₂ (g)
A solution originally at 0.600 M H₂O₂ is found to be 0.075 M after 54 min. The half- life for this reaction is min.

• A) 28
• B) 6.8
• C) 18
• D) 14
• E) 54

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