(2)

Write 1 paragraph per question. Paragraphs should be about 200 words.

1. What is the value of k (with units). explain how you determine your answer.
2. If the volumes of B and C were switched (2 mL of B and 1 mL of C, still 3 mL of A). How long would it take for the concentration of A to drop to 9.52 ✕ 10^-7 M? Explain.

The following kinetic data is found for the reaction

                                                                  A + B + C → products

                                                                  Rate Law = k[A][B][C]²

	Volume of reagent in experiment	Concentration of stock solution (M)
A	3 mL	5.44E-06 M
B	1 mL	0.55 M
C	2 mL	1.25 M

time (s)	[A] (M)
5	2.60x10^-06
10	2.49x10^-06
15	2.39x10^-06
20	2.28x10^-06
25	2.19x10^-06
30	2.09x10^-06
35	2.00x10^-06
40	1.92x10^-06
45	1.83x10^-06
50	1.76x10^-06
55	1.68x10^-06
60	1.61x10^-06
65	1.54x10^-06
70	1.47x10^-06
75	1.41x10^-06
80	1.35x10^-06
85	1.29x10^-06
90	1.24x10^-06
95	1.18x10^-06
100	1.13x10^-06
105	1.08x10^-06
110	1.04x10^-06
115	9.94x10^-07
120	9.52x10^-07