Question: The reaction EF --> E + F at 70C has rate constant k= 0.033 M -1 s -1 . Suppose we start with 0.027 mol

The reaction EF --> E + F at 70C has rate constant k= 0.033 M^-1s^-1. Suppose we start with 0.027 mol of EF (g) in a volume of 1.0 L. What is the half-life of EFin seconds at 70C? Keep 1 digit after decimal point.

For this one I did t1/2 = o.63/0.033 = 21. I know I went wrong somewhere. If you could explain each step that would be great.

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