Chapter 12, Problem 110CP

Consider the following hypothetical data collected in two studies of the reaction

$2\text{A}+2\text{B}\to \text{C}+2\text{D}$

Time(s)	Experiment 1 [A] (mol/L)	Experiment 2 [A] (mol/L)
0	1.0 × 10−2	1.0 × 10−2
10.	8.4 × 10−3	5.0× 10−3
20.	7.1 × 10−3	2.5 × 10−3
30.	?	1.3 × 10−3
40.	5.0 × 10−3	6.3 × 10−4

In Experiment 1, [B]₀ = 10.0 M.

In Experiment 2, [B]₀ = 20.0 M.

$\text{Rate}=\frac{-\Delta [A]}{\Delta t}$

a. Use the concentration versus time data to determine the rate law for the reaction.

b. Solve for the value of the rate constant (k) for the reaction. Include units.

c. Calculate the concentration of A in Experiment 1 at t =30.s