Trichloroacetic acid (ccl3co2h) is a corrosive acid that is used to precipitate proteins. the ph of a 0.050-m solution of trichloroacetic acid is the same as the ph of a 0.040-m hclo4 solution. calculate ka for trichloroacetic acid.

Ka = 0.16

Explanation:

HClO₄ is a strong acid and it will dissociate completely to give hydrogen ion and the conjugate base.

The pH of HClO₄ will be calculated as:

pH = -log[H⁺]

pH = -log[0.04] = 1.4

The trichloroacetic acid is a weak acid and it will not dissociate completely.

The dissociation will be:

Initial                     0.05                       0                         0

Change                -x                          +x                           +x

Equilibrium       0.05-x                     x                              x

Ka =

As pH of the acid = 1.4 it means the concentration of hydrogen ion is 0.04.

Therefore

x = 0.04

Putting values

Ka =

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explanation:

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hope this .