The half-life of carbon-11 is 20.3 min. If 5.00 g of carbon-11 is left in the sample after 59.3 min, what mass of carbon-11 was present initially?
A) 93.7 g
B) 79.3 g
C) 73.9 g
D) 37.9 g
E) 39.7 g
Correct Answer:
Verified
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A) 1
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