1. The initial reaction rate for 0.02 moles produced in a 5-L vessel in the 1st 2 seconds is

Question

a. 0.2 M/s
b. 0.04 M/s ***
c. 0.002 M/s
d. 0.05 M/s

2. Use the table below to calculate the initial reaction rate of the following reaction:
2A→B+C
[A]/M | t/s
0.10 | 0
0.08 | 2

a. 0.005 M/s
b. -0.005 M/s ***?
c. 0.01 M/s
d. -0.01 M/s

3. Use the data table below to determine the value of the rate law constant for the first order reaction:

Experiment Initial [A]/M Initial rate/M s-1
1 0.010 0.012
2 0.020 0.022
3 0.040 0.040

a. 1.3 s-1
b. 1.1 s-1
c. 0.9 s-1 ***
d. 0.7 s-1

4. For the rate law, rate=k[A]2, determine k using the data table below:

Experiment Initial [A]/M Initial rate/M s-1
1 0.40 | 0.016
2 0.20 | 0.0040
3 0.10 | 0.0010

a. 0.000020 M-1s-1
b. 0.00020 M-1s-1
c. 0.20 M-1s-1 ***
d. 0.10 M-1s-1

Answer 1

How did you arrive at that answer for #1? Does that answer give you the correct units of M/s?