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28 November, 02:52

The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 200-gram sample after 3 half-lives?

100

50

25

12.5

+3
Answers (1)
  1. 28 November, 04:15
    0
    The answer to your question is 25 grams

    Explanation:

    Data

    half-life = 5730 years

    sample = 200 g

    after 3 half-lives

    Process

    Calculate the amount of sample after one, two and three half-lives.

    After each half-life, that of sample is half the previous amount.

    Number of half-lives Amount of sample

    0 200 g

    1 100 g

    2 50 g

    3 25 g
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