The rate constant for the first order decomposition of a at 500oc is 9.2 x 10-3 s-1. how long will it take for 90.8% of a 0.500 m sample of a to decompose? question options:

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

i dont know the answe