Molar Mass of MgSO4

How to work out the molar mass of MgSO4

1. Count the atoms of each element in MgSO4: 1 Mg, 1 S and 4 O.
2. Multiply each count by the element's atomic weight: 1 × 24.305 = 24.305; 1 × 32.06 = 32.060; 4 × 15.999 = 63.996.
3. Add the results: 24.305 + 32.060 + 63.996 = 120.361 g/mol.

Frequently asked questions

What is the molar mass of MgSO4?

The molar mass of magnesium sulfate (MgSO4) is 120.361 g/mol, so one mole of it weighs 120.361 grams.

How many moles are in 100 grams of MgSO4?

100 g ÷ 120.361 g/mol = 0.831 mol.

Which element makes up most of the mass of MgSO4?

O, at 53.17% of the mass.