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Warriorz13:
A 50.0 g sample of 16N decays to 12.5g in 14.4 seconds. What is its half-life?
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Warriorz13:
@JustSaiyan
JustSaiyan:
50.0g ÷ 2 = 25 = 1 half life 25 ÷ 2 = 12.5g = 2 half-lives; 14.4 ÷ 2 = 7.2 sec = half-life
Warriorz13:
So what is the half life? 7.2 seconds?
JustSaiyan:
Yes.
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