Hydrogen Peroxide Decomposes to Water and Oxygen According to the Reaction

Hydrogen peroxide decomposes to water and oxygen according to the reaction below:
2 H₂O₂(aq) → 2 H₂O(l) + O₂(g)
In the presence of large excesses of I^- ion,the following set of data is obtained.What is the average rate of disappearance of H₂O₂(aq) in M/s in the first 45.0 seconds of the reaction if 1.00 L of H₂O₂ reacts at 25°C and 1.00 atm pressure?

A) 9) 09 × 10^-7 M/s
B) 3) 63 × 10^-6 M/s
C) 4) 33 × 10^-5 M/s
D) 1) 64 × 10^-4 M/s

Correct Answer:

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