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A given sample of AlCl3 contains 6.02 xx...

A given sample of `AlCl_3` contains `6.02 xx 10^20 Al^(3+)` ions. The moles of `Cl^-` ions are

A

`1.0xx10^(-3)`

B

`3.0xx10^(-3)`

C

`3.0xx10^(3)`

D

`0.33xx10^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Number of Cl-ions in the sample of `AlCl_(3)`
`=3xx6.02 xx10^(20)`
Moles of Cl-ions `=(3xx6.02xx10^(20))/(6.02 xx10^(23))=3xx10^(-3)`
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