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General Chemistry

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Moles of Ethanol in a Bottle of Kombucha

CHEM-V3CN1E

A typical bottle of kombucha contains 4.5% volume of ethanol, or ${ C }_{ 2 }{ H }_{ 5 }{O}{H}$.

How many moles of ethanol are contained in a 355.0 mL bottle of kombucha?

Note that the molar mass of the elements in this problem and the density of ethanol are:

${ MM }_{ C }$ = 12.01 g/mol
${ MM }_{ O }$ = 16.00 g/mol
${ MM }_{ H }$ = 1.01 g/mol
$\rho ({ C }_{ 2 }{ H }_{ 5 }OH)$ = 0.789g/mL