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Question

If something originally contained 32.0 g of Po-210, which has a half-life of 10.5 minutes, and was now 73.5 minutes old, how many grams would be left?
12 years ago

Answers

bobpursley
two ways:

amount left=32*(1/2)^(73.5/10.5)
put this in your google search window:
32*(1/2)^(73.5/10.5)=

0r this way:

amount left=32*e^(-.693*73.5/10.5)
put this in your google search window:
32*e^(-.693* 73.5/10.5)=
12 years ago

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