The total sum of the masses of the atoms or elements present in the molecule is termed as molecular mass.
Calculation of Molar mass of a compound
We can find the molecular mass of the molecule by following the given substance:
- Identify the formula of the compound or molecule
- Using the formula determine the number of atoms present in each element of the compound or molecule
- Multiply the atomic weight of each element with the number of atoms of that particular element
- Similarly, do it for all the elements in the molecule or compound
- Add up all the values obtained in the above step
- Then add the unit as grams/mole you will get the molecular mass of the substance
Molar mass of H2SO4
Look for the atomic masses of hydrogen, sulfur and oxygen.
H = 1.008
S = 32.06
O = 16
Therefore, the molar mass of H2SO4 is
=2(1.008) + 32.06 + 4(16)
Hence, molar mass of H2SO4is98.08 g/mol.