(a) State six postulates of Dalton's atomic theory.
(b) A 0.24g sample of compound of carbon and oxygen on analysis was found to contain 0.096 g of carbon and 0.144 g of oxygen. Find the percentage composition of the compound by weight.

Explanation

(a) For the postulates of Daltaon's atomic theory, cosult seciton.
`(b) "Percentage of carbon"=("Mass of carbon")/("Mass of compound")xx100=((0.096g))/((0.24g))xx100=40%`
`"Percentage of oxygen"=("Mass of oxygen")/("Mass of compound")xx100=((0.144g))/(0.24g)xx100=60%`