#### Answer

$2.8\times10^{3} s$

#### Work Step by Step

$t_{\frac{1}{2}}=\frac{0.693}{k}=\frac{0.693}{2.5\times10^{-4}s^{-1}}=2.8\times10^{3}s$

Published by
Cengage Learning

ISBN 10:
1285199049

ISBN 13:
978-1-28519-904-7

$2.8\times10^{3} s$

$t_{\frac{1}{2}}=\frac{0.693}{k}=\frac{0.693}{2.5\times10^{-4}s^{-1}}=2.8\times10^{3}s$

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