Substance a Decomposes by a First-Order Reaction

question 110

Multiple Choice

Substance A decomposes by a first-order reaction.Starting initially with [A] = 2.00 M,after 150 min [A] = 0.50 M.For this reaction what is ?

• A)150 min
• B)37.5 min
• C)75.0 min
• D)15.0 min
• E)300 min

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