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The half-life of C-14 is 5,730 years. How much of a 50.0-gram sample of C-14 will remain after 28,650 years?

Sagot :

zoz7

Answer:

1.5625

Explanation:

the half life of an isotope is the amount of time it takes for one half of the isotope to decay

28650 is 5 half lives (28650÷5730=5)

after one half life the mass will be 25 grams

after two half lives the mass will be 12.5 grams

after 3 half lives the mass will be 6.25 grams

after 4 half lives the mass will be 3.125 grams

after 5 half lives the mass will be 1.5625 grams

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