Calculate the mass of the following : (ii) 1 molecule of benzene

Explanation

Molecular mass of benzene `(C_6H_6)=(6xx12-01u)+(6xx1u)=78.06 u`
Molar mass of benzene `=78.06g "mol"^(-1)`
Then, mass of 1 molecule of benzene `=("Molar mass of benzene")/(Avogadro.s number")`
`= (78.06 g "mol"^(-1))/(6.023xx10^23 "mol"^(-1))=12.96xx10^(-23)g`.
Molar of 1 molecule of benzene `=12.94xx10^(-23)g`.