SOLUTION: a sample of a radioactive substance was put in storage 6 years ago. It's half-life is 5.5 years. If 8.3 gm of the original substance remains in the sample now, what is the initial
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-> SOLUTION: a sample of a radioactive substance was put in storage 6 years ago. It's half-life is 5.5 years. If 8.3 gm of the original substance remains in the sample now, what is the initial
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Question 691729: a sample of a radioactive substance was put in storage 6 years ago. It's half-life is 5.5 years. If 8.3 gm of the original substance remains in the sample now, what is the initial quantity of the substance (accurate to two significant figures)? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a sample of a radioactive substance was put in storage 6 years ago. It's half-life is 5.5 years. If 8.3 gm of the original substance remains in the sample now, what is the initial quantity of the substance (accurate to two significant figures)?
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8.3 = A(1/2)^(6/5.5)
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A = 8.3/(1/2)^(6/5.5)
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A = 3.90 years
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Cheers,
Stan H.
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