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The rate constant for a certain reaction is k = 7.20×10−3 s−1 . If the initial...

The rate constant for a certain reaction is k = 7.20×10−3 s−1 . If the initial reactant concentration was 0.850 M, what will the concentration be after 10.0 minutes?

A zero-order reaction has a constant rate of 3.00×10−4M/s. If after 60.0 seconds the concentration has dropped to 3.50×10−2M, what was the initial concentration?

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