Arsenic acid is a triprotic acid with the pKa values pKal 2.240, pka2 6.960, and pKa3 11.500. You wish to prepare 1.000

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Arsenic Acid Is A Triprotic Acid With The Pka Values Pkal 2 240 Pka2 6 960 And Pka3 11 500 You Wish To Prepare 1 000 1 (75.29 KiB) Viewed 15 times

Arsenic acid is a triprotic acid with the pKa values pKal 2.240, pka2 6.960, and pKa3 11.500. You wish to prepare 1.000 L of a 0.0200 M arsenate buffer at pH 6.680. To do this, you choose to mix the two salt forms involved in the second ionization, NaH₂AsO and Na₂HASO4, in a 1.000 L volumetric flask and add water to the mark. What 4 mass of each salt will you add to the mixture? mass NaH₂ AsO4 mass Na₂ HASO4 = = = g 6.0 g