ChemistryChemical combinationJAMB
How many moles of oxygen atoms are present in 0.5 mol of CaCO₃?
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Answer: A. 1.5
Each CaCO₃ has 3 O atoms: 3 × 0.5 = 1.5 mol.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.