Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
The hypothetical compound A decomposes in a first-order reaction that has a half-life of 2.3 × 102 s at 450. °C. If the initial concentration of A is 4.32 × 10-2 M, how long will it take for the concentration of A to drop to 3.75 × 10-3 M?
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