Question

The reaction 2A + 3B → C is first order with respect to A and B. When the initial concentrations are [A] 1.55 x 10 2 M and [B] 2.11 × 10-3 M, the rate is 2.65 x 10 4 M. Calculate the rate constant or the reaction. Enter your answer in scientific notation. 10 O M ● M-1 M1.s1
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Answer #1

Rate law is:
rate = k*[A]*[B]

Put values from 1st row of table in rate law
rate = k*[A]*[B]
2.65*10^-4 = k*0.0155*0.00211
k = 8.10 M-1.s-1

Answer:
8.10
M-1.s-1

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