If a Reaction Is First Order with a Rate Constant

question 61

Multiple Choice

If a reaction is first order with a rate constant of 5.48 × 10^-2/s,how long is required for 3/4 of the initial concentration of reactant to be used up?

• A)25.3 s
• B)36.5 s
• C)6.3 s
• D)18.2 s
• E)50.6 s

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