Question

What is the molar mass of `(NH_4)_2SO_4`?

Answer 1

The molar mass of ammonium sulfate is `"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"`:

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

Total: `"28.014 g/mol" + "8.06352 g/mol" + "32.065 g/mol" + "63.996 g/mol"="132.139 g/mol"`