Question

Part A

The rate constant for a certain reaction is k = 3.30×10^−3 s−1 . If the initial reactant concentration was 0.750 M, what will the concentration be after 2.00 minutes?

Part B

A zero-order reaction has a constant rate of 2.20×10^−4M/s. If after 35.0 seconds the concentration has dropped to 6.00×10^−2M, what was the initial concentration?

Express your answer with the appropriate units.