A Certain Reaction, Reaction A $\rarr$ Products, Is First Order with Respect to A

question 13

Multiple Choice

A certain reaction, reaction A $\rarr$ products, is first order with respect to A.Starting with [A] = 0.250M, it takes 45 min to reduce the concentration of A to 0.110M.What is its rate constant for this reaction?

• A)7.9 x 10^-3 min^-1
• B)1.1 x 10^-1 min^-1
• C)3.0 x 10^-4 min^-1
• D)1.8 x 10^-2 min^-1
• E)3.1 x 10^-3 min^-1

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