The half life of Chemical Q is 12 days. If you started your experiment with 42 grams, how much would be left in 73 days?

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The half life of Chemical Q is 12 days. If you started your experiment with 42 grams, how much would be left in 73 days?

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Answer 1 · 2016-07-30T09:34:57

#=0.656# grams

Explanation:

During #73# days chemical Q will decay #73/12=# at least #6# times
And it will decay by half each time.
So we can write
#42(1-0.5)^6#
#=42(0.5)^6#
#=42(0.015625)#
#=0.656# grams will be left after 73 days

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The half life of Chemical Q is 12 days. If you started your experiment with 42 grams, how much would be left in 73 days?

1 Answer

Explanation:

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