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Mercury-197 has a half-life of 3 days. Starting with 300 grams, how much remains in 3 weeks? (Round to two places)
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1 vote
Mercury-197 has a half-life of 3 days. Starting

with 300 grams, how much remains in 3
weeks? (Round to two places)

User Andrey Bienkowski
by
6.5k points

1 Answer

4 votes

Answer:

2.34 gms left

Step-by-step explanation:

3 weeks = 21 days = 7 half lives

300 * (1/2)^7 = 2.34 gms

User Ayoy
by
6.3k points
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