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100 ml 0.04 M HA (K(a)=10^(-5)) and 100 ...

`100` ml `0.04` M HA `(K_(a)=10^(-5))` and `100` mI `0.8` M HB `(K_(a) = 10^(-6))` are mixed together. Which is an incorrect statement ? (Given : `(0.6)^(0.5) = 0.78, log (0.78) = -0.108)`

A

pH of final solution is `3.108`

B

Degree of dissoiciation of HA in final solution is `(1)/(78)`

C

Degree of dissociated of HB in final solution is `(0.5)/(780)`

D

Degree of dissociation of `H_(2)O` in final solution is `10^(-11)/(78xx0.5555)`

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