Give 1 pH value where aniline and dibromobenzene would be in different layers in an extraction. Assume that possible pH values are between 0 and 14.

Question

Aubrey Davies

Chemistry

8 June, 16:36

Give 1 pH value where aniline and dibromobenzene would be in different layers in an extraction. Assume that possible pH values are between 0 and 14.

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Answers (1)

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Heather Simpson · Answer 1

Aniline and dibromobenzene:

They separate at a PH of less than pH 4

Explanation:

Aniline a weak base with pkb value of 9.4 and pka of aniline which tells its behaviour at specific PH is given by 14-9.4 = 4.6 at 25°C as such it becomes protonated at a PH less than 4 separating the two liquids