Answer to Question #170842 in General Chemistry for Amy

Question #170842

The rate equation for the reaction of nitrogen dioxide and carbon monoxide in the gas state to form carbon dioxide and nitric oxide is represented by the equation:

(CH3)3CBr  +  H2O  →  (CH3)3COH  +  HBr

The following data were collected at 125°C:


Initial [H2O] mol L-1 Initial [(CH3)3CBr] mol L-1 Initial rate mol L-1min-1

Experiment 1 5.0 x 10-2 2.0 x 10-2 1.7 x 10-7

Experiment 2 5.0 x 10-2 4.0 x 10-2 1.7 x 10-7

Experiment 3 1.0 x 10-1 4.0 x 10-2 1.5 x 10-6


a.)Write the rate equation for the reaction


b.)Solve for k, include units in your answer


1
Expert's answer
2021-03-12T06:29:19-0500

"R =k[A]^x[B]^y"

Dividing experiment 2 results by experiment 1 results,

R = [(CH3)3CBr]

1 = 2x

2⁰ = 2x

x = 0,

Rate doesn't depend on (CH3)3CBr


Dividing experiment 3 results by experiment 2 results,

R = [H2O]

8.8 = 2x

x = 3.14


Therefore the rate reaction is R = [H2O]3.14


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