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The pH of NH4Cl may be calculated from :...

The pH of `NH_4Cl` may be calculated from :

A

`[H^+]` = `sqrt(K_b X C)`

B

`[OH^-]`= `sqrt( K_b X C)`

C

`[OH^-]`= `sqrt( K_w X C / K_a)`

D

None of these

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