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A sample of AIF(3) contains 3.0 xx 10^(2...

A sample of `AIF_(3)` contains `3.0 xx 10^(24)` `F^(-)` ions. The number of formula units of the sample are

A

`9 xx 10^(24)`

B

`3 xx 10^(24)`

C

`0.75 xx 10^(24)`

D

`1.0 xx 10^(24)`

Text Solution

Verified by Experts

The correct Answer is:
D
An, `AIF_(3)` the number off is 3 for one `AIF_(3)` molecule `3F^(-) -= 1` formula unit of `AIF_(3)`
`3.0 xx 10^(24) F^(-) -= 1 xx 10^(24) AIF_(3)` units
`= 1.0 xx 10^(24)`
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