Question

5.1 mol of a compound contains 1 mol of carbon and 1 mol of oxygen what is the molecular mass of the compound

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Answer 1

the molecular mass of carbon is about 12 grams/mol, and the molecular mass of oxygen is about 16 grams/mol. Since a 5.1 mil compound contains one mol of both carbon and oxygen, you would just add the molecular masses of both compounds, which equates to about 28 grams/mol, or 28 amu.