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If a rock sample originally contained 12 g of uranium 235, how much will be left after 2 half lives?

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asked Jun 11, 2023 53.6k views

3 votes

If a rock sample originally contained 12 g of uranium 235, how much will be left after 2 half lives?

Chemistry
high-school

CCC asked

by CCC

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1 Answer

8 votes

Answer:

3 g

Step-by-step explanation:

new mass = (1/2)^n * original mass

where n = number of half lives

(1/2) ^2 * 12

= 3 g

Ashlea answered Jun 15, 2023

by Ashlea

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If a rock sample originally contained 12 g of uranium 235, how much will be left after 2 half lives?

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