Question

Calculate the molar mass of benzene

Answer 1

1. Benzene is the simplest aromatic hydrocarbon and the parent compound of numerous important aromatic compounds.
2. Molar mass is the sum of the masses of all the individual atoms present in a molecule.
3. The chemical formula of Benzene is C₆H₆.
4. The atomic mass of carbon C is 12 u.
5. The atomic mass of hydrogen H is 1 u.
6. .$\mathrm{Molecular}\mathrm{mass}\mathrm{of}\mathrm{Benzene}{\mathrm{C}}_6{\mathrm{H}}_6=(\mathrm{Atomic}\mathrm{mass}\mathrm{of}\mathrm{Carbon})\mathrm{x}6+(\mathrm{Atomic}\mathrm{mass}\mathrm{of}\mathrm{hydrogen})\mathrm{x}6$

$=(12\mathrm{x}6)+(1\mathrm{x}6)$

$=78$

The molecular mass of Benzene C₆H₆ is 78 g mol^-1.