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Which amount of dioxygen (in grams) cont...

Which amount of dioxygen (in grams) contains `1.8 xx 10^(22)` molecules ?

A

`0.960`

B

`96.0`

C

`0.0960`

D

`9.60`

Text Solution

Verified by Experts

The correct Answer is:
A
`6.022 xx 10^(23)` molecules of `O_(2)` weigh = 32 g
`1.8 xx 10^(22)` molecules of `O_(2)` weight `= ((32g)xx(1.8xx10^(22)))/((6.022xx10^(23)))`
`=0.956~~0.96` g of `O_(2)`.
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