Calculate the number of moles of CaCO3 (calcium carbonate, or limestone) in a 20.0 g sample of this substance.
A) 2.00 × 103 moles
B) 0.200 mole
C) 0.294 mole
D) 1.36 × 103 moles
E) 1.20 × 103 moles
Correct Answer:
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