For the reaction A + B + C rightarrow D + E, the initial reaction rate was measu

ID: 486308 • Letter: F

Question

For the reaction A + B + C rightarrow D + E, the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected: Given the data calculated in Parts A, B, C, and D, determine the initial rate for a reaction that starts with 0.65 M of reagent A and 0.60 M of reagents B and C? Express your answer to two significant figures and include the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot or a dash.

Explanation / Answer

from the data rate law as follows

rate = K [A]2[C]

now calculate the rate constant

K = [rate] / [A]2 [C]

K = 0.00012 / [0.4]2[0.4]

K = 0.00012 / 0.064

K = 1.875 x 10-3 M-2s-1

now party E

if [A] =0.65 M

[C] = 0.6 M

rate = K [A]2 [C]

rate = 1.875 x 10-3 [0.65]2[0.6]

rate = 4.75 x 10-4 M/s

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For the reaction A + B + C rightarrow D + E, the initial reaction rate was measu

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