Kinetics: The Rate of a Chemical Reaction

Title:
Kinetics: The Rate of a Chemical Reaction
Objectives:
1. To study the kinetics of chemical reaction, 2 I- + S2 O82- I2 + 2 SO42- .
2. To study the effects of reactant concentration (persulphate, S2O82-, and iodide, I-) and temperature on the rate of chemical reactions. ( i) Study the effect of 0.20M (S2O82-) on the rate of chemical reaction. ( ii) Study the effect of 0.10M (S2O82-) on the rate of chemical reaction. ( iii) Study the effect of 0.05M (S2O82-) on the rate of chemical reaction. ( iv) Study the effect of 0.20M (I-) on the rate of chemical reaction. ( v) Study the effect of 0.10M (I-) on the rate of chemical reaction. ( vi) Study the effect of 0.05M (I-) on the rate of chemical reaction. ( vii) Study the effect of temperature at 288K on the rate of chemical reaction. (viii) Study the effect of temperature at 305K on the rate of chemical reaction. ( ix) Study the effect of temperature at 316K on the rate of chemical reaction.
3. To study the order of reaction for S2O82-.
4. To study the order of reaction for I-.
5. To study the rate equation of 2 I- + S2 O82- I2 + 2 SO42-.
6. To study the rate constant in the rate equation of 2 I- + S2 O82- I2 + 2 SO42-.

Results:
Table 1: Volume of reactants (S2O82-, [NH4]2 SO4, I-, KNO3) added and the concentration of the reactants (S2O82-, I-).
Experiment
Volume of 0.20M (S2O82-)
Volume of 0.20M
[NH4]2 SO4
Volume of 0.20M (I-)
Volume of 0.20M KNO3
Temperature

Concentration of (S2O82-)
Concentration of (I-)
A i.
25cm3
-
25cm3
-
RT
*0.20M
0.20M
ii.
25cm3
75cm3
25cm3
-
RT
**0.05M
0.20M
iii.
50cm3
50cm3
25cm3
-
RT
***0.10M
0.20M
B i.
25cm3
-
25cm3
-
RT
0.20M
****0.20M
ii.
25cm3
-
25cm3
75cm3
RT
0.20M
*****0.05M
iii.
25cm3
-
50cm3
50cm3
RT
0.20M
******0.10M
C i.
50cm3
50cm3
25cm3
-
288K
0.10M
0.20M
ii.
50cm3
50cm3