The molecular weight of H2SO4 is:

49.078 g/mole

98.086 g/mole

194 296 armoe

The answer to your question is: 98 gr / mole

Explanation:

Molecular weight and molecular mass are synonyms and they referred to sum of the the molecular masses of the elements that form part of a compound. Their units are grams / mole

In your example we need to sum the molecular mass of the components of sulphuric acid.

Like this:

Hydrogen (H) = 1.008 x 2

Sulphur (S) = 32 x 1 = 32

Oxygen = 16 x 4 = 64

Total = 98 gr / mole