In: Chemistry
The reaction of the persulfate ion with the iodine ion at room temperature is:
S2O82- + 2 I- ↔ 2 SO42- + I2 , so rate = k [S2O82-]x [I-]y
The following data was collected at room temperature:
Experiment |
[S2O82-] (M) |
[I-] (M) |
Initial Rate (M/s) |
1 |
0.10 |
0.15 |
2.61 x 10-5 |
2 |
0.20 |
0.15 |
5.21 x 10-5 |
3 |
0.10 |
0.30 |
5.24 x 10-5 |
Determine the following:
(a) The rate law (including exponents for S2O82- and I-)
(b) The rate constant, k