How many moles are in 508 g of ethanol (C_2H_6O)?

Dec 15, 2015

$\text{11.02 mol C"_2"H"_6"O}$

Explanation:

Calculate the molar mass of $\text{C"_2"H"_6"O}$.

$2 \times \text{molar mass of C"=2xx12.01 "g/mol"=24.02"g/mol}$
$6 \times \text{molar mass of H"=6xx1.01"g/mol"=6.06"g/mol}$
$1 \times \text{molar mass of O"=1xx16.00"g/mol"=16.00"g/mol}$

The sum of the molar masses of each atom is $46.08 \text{g/mol}$.

508color(red)(cancel(color(black)("g")))xx(1"mol")/(46.08color(red)(cancel(color(black)("g"))))="11.02 mol C"_2"H"_6"O"