`CH_3NH_2` (`0.1 `mole,` K_b = 5 × 10^(-4)`) is added to `0.08` moles of `HCl` and the solution is diluted to one litre

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Q 1139001812.     `CH_3NH_2` (`0.1 `mole,` K_b = 5 × 10^(-4)`) is added to `0.08` moles of `HCl` and the solution is diluted to one litre, resulting hydrogen ion concentration is
A

`8 × 10^-2`

B

`1.6 × 10^-11`

C

`5 × 10^-5`

D

`8 × 10^-11`

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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