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OpenStudy (anonymous):
A 18 gram sample of a substance that's used to detect explosives has a k-value of 0.125 find the substances half-life, in days. Round your answers to the nearest tenth
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OpenStudy (anonymous):
T1/2 = ln 2 / k = ln 2 / 0.125 = ???????
OpenStudy (anonymous):
=5.5?
OpenStudy (anonymous):
Yes
OpenStudy (anonymous):
okay thanks
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