Question

# Consider the reaction: A + B → products The following rate law was experimentally determined: rate...

Consider the reaction: A + B → products
The following rate law was experimentally determined: rate = k[A][B]2
If the concentration of A stays the same and B doubles, the rate will

increase by a factor of sixteen.
triple.
double.

Which statement is correct?

The exponents in the rate law NEVER match the coefficients in the balanced chemical reaction.
The exponents in the rate law MUST be determined by experiment.
The exponents in the rate law ALWAYS match the coefficients in the balanced chemical reaction.

The initial rate method is being used to study the kinetics of a particular reaction. The absorbance for the reaction is being monitored as a function of time. The table here contains absorbance vs time data.

time, s 0 4 8 12 16 20
Abs 0.11 0.13 0.15 0.17 0.19 0.21

What is the initial rate for this reaction?

Initial Rate = Abs/s

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