What is the molar mass of (NH_4)_2SO_4?

Dec 8, 2015

The molar mass of ammonium sulfate is $\text{132.139 g/mol}$.

Explanation:

The molar mass of an element or compound is the mass of one mole of the substance. In order to determine the molar mass of a compound, multiply the molar mass of each element times its subscript. The molar mass of an element is its atomic weight on the periodic table in g/mol. If there are parentheses around some elements, the subscripts of the elements inside the parentheses are multiplied times the subscript after the parentheses.

Molar mass of ("NH"_4)_2"SO"_4":

$\text{N} :$(2xx14.007"g/mol")="28.014 g/mol"
$\text{H} :$(8xx1.00794"g/mol")="8.06352 g/mol"
$\text{S} :$(1xx32.065"g/mol")="32.065 g/mol"
$\text{O} :$(4xx15.999"g/mol")="63.996 g/mol"

Total: $\text{28.014 g/mol" + "8.06352 g/mol" + "32.065 g/mol" + "63.996 g/mol"="132.139 g/mol}$