Which is the formula mass of Na2SO4?

Question:

Which is the formula mass of Na2SO4?

Empirical Formulas:

Formula masses use the empirical formula rather than the chemical formula of a compound. This is the smallest representation of the ratio between the atoms. For example, the chemical formula for hydrogen peroxide is H2 O2, but the empirical formula is HO. This shows that for every hydrogen atom, there is one oxygen atom.

Answer and Explanation:

Become a Study.com member to unlock this answer! Create your account

The formula mass of Na2 SO4 is 142 atomic mass units.

We do not need to reduce the chemical formula in this case because there is only one sulfur...

See full answer below.