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alexira [117]
3 years ago
10

A radioactive isotope has a half-life of 2 minutes. How many total minutes will it take for 100-g of the isotope to get to just

6.25-g remaining
Chemistry
2 answers:
sergij07 [2.7K]3 years ago
6 0

Answer:

8 minutes

Explanation:

G(g)                 T(min)

100 --------------- 0

50-------------------2

25 -------------------4

12.5  ---------------  6

6.25 ----------------8

     another    way:

100/6.25 = 16

  16 = 2⁴       ( 4 half lives)    

Each half life is 2 minutes

so 4 half lives will be 8 minutes

andreev551 [17]3 years ago
4 0

Answer:

It would take 12 minutes.

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