Multiple Choice
3.25 mole of a radioactive isotope with a half-life of 18.2 hours sits on a countertop for 2.7 days exactly.How much of the isotope is left?
A) 0.14 mole
B) 0.28 mole
C) 1.34 mole
D) 2.47 mole
E) 3.25 mole
Correct Answer:
Verified
Correct Answer:
Verified
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