What mass of sulfur is contained in a 250g mass of 98% sulfuric acid?

1 Answer
Mar 7, 2017

Approx. 82g............

Explanation:

Moles of sulfuric acid = MassMolar mass

=250g98.08gmol1=2.55mol.

And thus there are 2.55mol×32.06gmol1 of sulfur, approx. 82g sulfur.

Sulfuric acid can be obtained at 98% concentrations, but this is still an aqueous solution, with [H2SO4]18molL1.