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Ionic strength of 0.4M CaCl(2) is...

Ionic strength of `0.4M CaCl_(2)` is

A

`2.8`

B

`1.2`

C

`1.0`

D

`1.8`

Text Solution

Verified by Experts

The correct Answer is:
b
`[Na^(o+)]=06M[PO_(4)^(3-)]=0.2`
`mu=(1)/(2)[0.6(1)^(2)+0.2(3)^(2)]=1.2`
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