Titration curve. please show work so I can understand the process. A 0.0430 M ac

Question

Titration curve.

please show work so I can understand the process.

A 0.0430 M acid, HA, ts 0.60% dissociated, what is the pKa of the acid? 5. The titration curve is generated for one of the following 14 12 10 diprotic acids with standard 0.100 M sodium hydroxide. Only one of the pairs will show a single equivalence point. What acid is titrated and why is only one equivalence point observed? A) Resorcinol: pK 9.30; pK2-11.06 B) Leucine C) Maleic acid pk-1.82; pK 6.59 D) Salicylic acid pK! = 2.97 ; pK,-13.74 E) Tartaric acid pKi 3.04 pK2-4.36 pKi-2.33 ;pK?- 9.74 .00 10 15 20 25 30 35 4045 Volume of NaOH added (m)

Explanation / Answer

Salicylic acid is the one which gives a single equivalence point.Because pKa2 of salicylic acid is very high when compared with its pKa1 value.

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