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What is expected value of van't Hoff fac...

What is expected value of van't Hoff factor for `K_(3)[Fe(CN)_(6)]` in the dilute solution?

A

10

B

4

C

5

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
B
`K_(3)Fe(CN)_(6) = 3K^(+) + Fe (CN)_(6)^(3-)`
`{:(("Before dissociation"),1,0,0),(("After dissociation"),1-alpha,3alpha,alpha),(("van't Hoff factor"),1-alpha +,(3alpha)+,alpha=1 +3alpha):}`
`As alpha=1,i=4`.
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