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A sample of AIF3 contains 3.0 xx 10^(24)...

A sample of `AIF_3` contains `3.0 xx 10^(24)F-ions`. The number of formula unit of this sample are`

A

`9xx10^(24)`

B

`3xx10^(24)`

C

`0.75xx10^(24)`

D

`1.0xx10^(24)`

Text Solution

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The correct Answer is:
D

(d) In, `AIF_3` the number of f is 3, for one `AIF_3` molecule `3F=1` formula unit of `AIF_3` `3.0xx10^(24)F-=1/3xx3.0xx10^(23)AIF_3units`
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