SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the half-life or arsenic is 18 days. A sample contains a certain amount of arsenic. After 72 days, only 5 g of the arsenic still remains. What is the initial mass of the arsenic?
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80 g
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160 g
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90 g
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72 g
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Explanation:
There is 1 question to complete.