What is the mass of 0.20 mole of C2H5OH (ethanol)?

Use the relation

One mole of molecules = Gram molecular mass of a substance

Mass = number of moles × molar mass

Number of moles = 0.2mol

Molar mass of Ethanol = 46.07g/mol

Mass = 0.2 × 46.07

Mass = 9.214g

Therefore, 0.2moles of ethanol has 9.214grams of mass

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