The First-Order Reaction A $\to$ B Has K = 5

question 133

Multiple Choice

The first-order reaction A $\to$ B has k = 5.67 s^-1.If [A]₀ = 0.500 M,how long will it take [A] = 0.124 M ?

• A)0.122 s
• B)0.100 s
• C)8.18 s
• D)0.246 s
• E)0.488 s

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