Concept explainers
The mass of Carbon-14 in
Answer to Problem 10PEB
Solution:
Explanation of Solution
Given data:
Mass of carbon-14 in the wood
Half-life of carbon-14
Age of the tree
Formula used:
the expression of number of half-lives iswritten as,
The expression of the mass after the half-lifeiswritten as,
Here,
Explanation:
Write the expression of number of half-lives.
Substitute
Since the number of half-life is 5, the mass will be divided 5 times.
The mass divided will be the mass of previous half-life divided by 2.
Write the expression of mass after the half-life.
Substitute
Write the expression of mass after the half-life.
Substitute
Write the expression of mass after the half-life.
Substitute
Write the expression of mass after the half-life.
Substitute
Write the expression of mass after the half-life.
Substitute
Conclusion:
The mass of carbon-14 is
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Chapter 21 Solutions
Physical Science
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