At 40 degrees Celsius CH2O2(aq) will decompose according to the following reaction:
2H2O2(aq) —– 2H2O(l) + O2(g)
The following data were collected for the concentration of H2O2 at various times.
Times(s) [H2O2](M)
0 1.000
2.16×10^4 0.500
4.32×10^4 0.250
a. Calculate the average rate of decomposition of H2O2 between 0 and 2.16 x 10^4 s. Use this rate to calculate the average rate of production of O2(g) over the same time period.
b. What are these rates for the time period 2.16 3 x10^4 s to 4.32 x 10^4 s?
Answer:
A. Rate of decomposition of H₂O₂ = 2.31 × 10-⁵ M/s
Average rate of production of O₂ = 1.16 × 10-⁵ M/s
B. Rate of decomposition of H₂O₂ = 1.16 × 10-⁵ M/s
Average rate of production of O₂ = 5.8 × 10-⁶ M/s