Q 1271401326.     Calculate the e.m.f of the, cell

Pt, `H_2 (1 atm) |BOH (0.1 M )||HA (0.1 M )| H_2 ( 1 atm ),` Pt

`K_a` for `HA = 4 × 10^(-5)` and `K_b` for `BOH = 2.5 × 10^(-5)`


A

`-0.532` V

B

`-0.224` V

C

`0.266` V

D

`0.532` V

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