Question

A) Calculate the pH of a 2.0x10-4 M solution of aniline hydrochoride, C6H5NH3Cl.

Answer 1

Answer: pH = 3.69

Step-by-step explanation:

The pH of a solution of Aniline Hydrochoride can be calculated using the following mathematical expression :

pH = -log [H+]

= -log [2.0x10-4 M]

= 4 - 0.3010

pH of aniline hydrochoride solution = 3.69

Answer 2

Given the concentration of aniline hydrochloride is
`2.0 *10^(-4) M`

Aniline hydrochloride is the conjugate acid of aniline a weak base.

pH can be calculated from
`pK_(a)` anilinium ion the conjugate acid of aniline.