The First-Order Reaction A $\rightarrow$ B Has K = 0

question 114

Multiple Choice

The first-order reaction A $\rightarrow$ B has k = 0.210 min^-1.If [A]₀ =0.500 M, how long will it take [A] to equal 0.115 M ?

• A)1.83 min
• B)4.55 min
• C)7.00 min
• D)20.7 min
• E)31.9 min

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