Question

The following reaction was monitored as a function of time:
AB→A+B
A plot of 1/[AB] versus time yields a straight line with slope 5.7×10⁻² (M⋅s)−1 .

1)

What is the value of the rate constant (k) for this reaction at this temperature?

Express your answer using two significant figures.

_____M-1S-1

2)Write the rate law for the reaction.

Rate=k

Rate=k[AB]

Rate=k[AB]2

Rate=k[AB]3

3) What is the half-life when the initial concentration is 0.57 M ?

Express your answer using two significant figures.

4) If the initial concentration of AB is 0.230 M , and the reaction mixture initially contains no products, what are the concentrations of Aand B after 80  s ?

Express your answers numerically using two significant figures, separated by a comma.

Answer 1