SOLUTION: The half-life of carbon-14 is 5730 years. How long does it take for 3.4 grams of carbon-14 to be reduced to 1.4 grams of carbon-14 by radioactive decay?
i believe i'm supposed t
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i believe i'm supposed t
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Question 888347: The half-life of carbon-14 is 5730 years. How long does it take for 3.4 grams of carbon-14 to be reduced to 1.4 grams of carbon-14 by radioactive decay?
i believe i'm supposed to use the formula A=A0e^rt but i'm unsure of where to plug in the numbers. i've tried to solve and i keep getting a number that cant be possibe. Answer by solver91311(24713) (Show Source):
Where is the final amount, is the initial amount, is the time in years (and the value for which you need to solve), and is the half-life in years.
First, let's solve the equation for the value we want to determine to get a general formula for time given half-life, initial amount, and final amount.
Just plug in your given numbers and to the arithmetic. You will need your scientific calculator.
John
My calculator said it, I believe it, that settles it
