What is the formula weight for sulfate?

Answer 1

The Atomic Mass of sulfate is simply the atomic masses of sulfur and four oxygen atoms added together or: 32.07 g/mol + (4 x 16.00 g/mol) = 96.07 g/mol. We don't consider the ion charge because electrons weigh so little that they have no impact on any calculations using this mass.

Answer 2

The molecular weight of FeSO4*7H2O is 278g

Answer 3

SO4 = 32.065 + 16 + 16 +16 + 16 = 96.065

I doubt you will need to be that exact though.

Answer 4

SO4 weighs 99.025 grams.

Answer 5

98