ayerskaleigh ayerskaleigh

03-12-2020
Mathematics

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You have 2,112 grams of a radioactive kind of mercury. How much will be left after 188 days if it's half-life is 47 days?

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mhanifa mhanifa

12-12-2020

Answer:

132 g

Step-by-step explanation:

Initial amount = 2112 g
Time = 188 days
Half-life = 47 days

188 days / 47 days = 4 periods

Mercury left after 188 days:

2112 * (1/2)^4 =
2112* 1/16 =
2112/16 =
132 g

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