How do you calculate the molecular mass of hydrogen sulfide, H2S in atomic mass unit u?

33.988‬u

Explanation:

Both atomic mass units and molar mass are the same. It follows the same procedure and no complex path.

The atomic mass unit is the mass of one mole of an atom usually given in g/mol or some time amu.

To solve for H₂S;

Atomic mass unit of H = 1.008u

Atomic mass of S = 31.972u

Molecular mass in atomic mass unit = 2 (1.008) u + 31.972u = 33.988‬u