Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s−1.
Part A: What is the half-life for this reaction?
Part B: If you start with 4.0×10−2 M I2 at this temperature, how much will remain after 7.68 s assuming that the iodine atoms do not recombine to form I2?
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