You and your lab partner are studying the rate of a reaction, A + B --> C. You m

Question

You and your lab partner are studying the rate of a reaction, A + B --> C. You make measurements of the initial rate under the following conditions:

Experiment [A] (M) [B] (M) Rate (M/s)
1 1.6 0.1
2 3.2 0.1

(a) Which of the following reactant concentrations could you use for experiment 3 in order to determine the rate law, assuming that the rate law is of the form, Rate = k [A]x [B]y? Choose all correct possibilities.

1) [A] = 3.2 and [B] = 0.3
2) [A] = 3.2 and [B] = 0.2
3) [A] = 3.2 and [B] = 0.1
4) [A] = 1.6 and [B] = 0.3
5) [A] = 1.6 and [B] = 0.2
6) [A] = 8.0 and [B] = 0.1
7) [A] = 4.8 and [B] = 0.1
8) [A] = 6.4 and [B] = 0.1

I choose 1-5 and it's wrong. I choose 1-3 and it's wrong.

Explanation / Answer

a) the following reactant concentrationscould you use for experiment 3 in order to determine the ratelaw

1) [A] = 3.2 and [B] = 0.3
2) [A] = 3.2 and [B] = 0.2
4) [A] = 1.6 and [B] = 0.3
5) [A] = 1.6 and [B] = 0.2

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