Question: The gas phase reaction for A 2 2A is first order in A 2 . After 751 s, 67.4% of A 2 remains without

The gas phase reaction for A2 → 2A is first order in A2. After 751 s, 67.4% of A2 remains without decomposing.

Calculate:
a. Half life;
b. The time it takes to decompose 90% of A2.

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