Molar and molecular weight of H2S

• Relative molecular weight of H2S: 34.08088
• Molar mass of H2S: 34.08088 g/mol (0.03408 kg/mol)

Calculation of the relative molecular and molar mass of H2S

• Mr[H2S] = Ar[H] * 2 + Ar[S] = 1.00794 * 2 + 32.065 = 34.08088
• Molar mass (kg/mol) = Mr[H2S] : 1000 = 34.08088 : 1000 = 0.03408 kg/mol

H2S: percent composition by element

• Hydrogen (H) = 2.01588 : 34.08088 * 100 = 5.915 %
• Sulfur (S) = 32.065 : 34.08088 * 100 = 94.085 %

Molar mass calculator