chemistry; kinetics

Use the following table to determine the average rate during the period 800 to 1200 seconds for the decomposition of H2O2.

2 H2O2(l) → 2 H2O(l) + O2(g)

Time (sec) (H2O2)M
0 2.32
400 1.72
800 1.30
1200 0.98
1600 0.73

a] 1.2 x 10-3M/sec
b] 1.6 x 10-3 M/sec
c] 2.4 x 10-3M/sec
d] 8.2 x 10-4M/sec
e] 8.0 x 10-4M/sec

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  1. the spacing came out weird so just to clarify, the times are 0, 400, 800, 1200, and 1600 secs.

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  2. 8.0x10-4

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  3. wrong 8.0x10-4

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