## Chemistry: The Molecular Science (5th Edition)

Number of moles of ethanol that can be vaporized= $\frac{q}{\Delta_{vap}H}=\frac{500.\,kJ}{38.6\,kJ/mol}=12.95\,mol$ Mass in grams of ethanol= number of moles$\times$molar mass $=12.95\,mol\times 46.07\,g/mol$ $=597\,g$