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Warriorz13:
The half-life of 42K is 12.4 hours. How much of a 750 g sample is left after 62.0 hours
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Warriorz13:
@JustSaiyan
JustSaiyan:
750 ⋅ 0.5^(62÷12.4) 750 ⋅ 0.5^(5) 750 ⋅ 0.03125 23.4375 g remains after 62 hours
Warriorz13:
0.0
JustSaiyan:
What?
Warriorz13:
I understand it not lol
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JustSaiyan:
Nuclear chemistry is a refined taste. It is imperative that all the numbers are correct, otherwise they equal disaster.
Warriorz13:
Does step 3 equal step 4?
JustSaiyan:
Yes. Why?
Warriorz13:
Trying to understand it.
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