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A first-order reaction is 75.0% complete in 320. s.
a. What are the first and second half-lives for this reaction?
b. How long does it take for 90.0 % completion?
A first order reaction, where [A]o = 1.00 M, is 66.5% complete in 303 s. How long does it take for the same reaction togo from 1.00 M to 85.7 % completion?
In a first-order decomposition reaction, 50.0% of a compound decomposes in 13.5 min.
(a) What is the rate constant of the reaction? ________________minâ1
(b) How long does it take for 75.0% of the compound to decompose? _____________min