Consider this reaction: A→B+2C   This is a first order reaction.  The half life is 7.5*102s .  If the starting concentration of A is  2.11*10-1M, at what time will [A] be 3.54*10-3M   What is the equation we can use to solve this question? In order to figure out t, we need to know k. What can we use to figure out k ? Now we can use integrated rate law equation to solve

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