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Question 30

From Chemistry HL Paper 1 (May 2024, TZ2)

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  1. The pH curve below is produced when aqueous ammonia is titrated with hydrochloric acid.
pH titration curve showing the titration of aqueous ammonia with hydrochloric acid, with a point X indicated on the curve.
pH titration curve showing the titration of aqueous ammonia with hydrochloric acid, with a point X indicated on the curve.

Besides water, which species are the major components of the reaction mixture at point X of the pH curve?