Question

calculate the Mass percentage of carbon in benzene​

Answer 1

Answer:

144 g ......................

Answer 2

Benzene formula = C6H6

Mass % of an Element =

mass of the element in the compounx100

molecular mass of the compound

Molecular mass = C = 12x6 = 72

H= 1 x 6 = 6

= 72 + 6 = 78 g/mol

Mass % of the element = 72 x 100

78

mass % of carbon in benzene = 92.30%

hope this helps :)