Two bulbs A and B of equal capacity contain 10 g of oxygen `(O_2)` and ozone `(O_3)` respectively. Which bulb will have
(i) larger number of molecules?
(ii) larger number of oxygen atoms?

Explanation

`"10 g O"_(2)=(10)/(32)"mole"=(10)/(32)xx6.02xx10^(23)" molecules"=1.88xx10^(23)" molecules"`
` = 2xx1.88xx10^(23)" atoms"=3.76xx10^(23)" atoms"`
`"10 g O"_(3)=(10)/(48)" mole"=(10)/(48)xx6.02xx10^(23)" molecules"=1.254xx10^(23)" molecules"`
`=3xx1.254xx10^(23)" atoms"=3.76xx10^(23)" atoms"` ltBrgt Thus, both contain the same bumber of atoms but bulb `B_(1)` contains more number of molecules.