The following chemical reaction: A products shows first order kinetics with respect to A; rate = k[A]. If k = 5.46 x 10-4 s-1 and the initial concentration of A is 0.82 mol L-1, what is the half life of this reaction in minutes? Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".