The reactant concentration in a second-order reaction was 0.330 M after 200 s and 4.50×10−2 M after 750 s . What is the

[answerhappygod]

The reactant concentration in a second-order reaction was
0.330 M after 200 s and
4.50×10−2 M after 750 s . What is
the rate constant for this reaction?
Express your answer with the appropriate units. Indicate the
multiplication of units, as necessary, explicitly either with a
multiplication dot or a dash