1.

A sample of AlF_3contains3.0 xx 10^24 F^(-)ions. The number of formula units of this sample is :

Answer»

`2.0 xx 10^24 `
`1.0 xx 10^24`
`5 xx 10^23`
`9.0 xx 10^24`

Solution :`3F^(-)` are present in ONE `AlF_3` formula UNIT
No. of `AlF_3` formula units` = (3.0 xx 10^24)/(3) = 1 xx 10^24 `


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