1.

Thenumber of O_3 molecules in16 g of ozone is approximately.

Answer»

`2xx10^(23)`
`3xx10^(23)`
`4XX10^(23)`
`6xx10^(23)`

Solution :48 G of `O_3" contains "6.02xx10^(23)" molecules "
`16 g " of " O_3" contains"(6.02xx10^(23))/(48) xx16`
`=2.00xx10^(23)" molecules ".`


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