1.000 g of which salt, when titrated with 0.500 M HCl, gives the titration curve shown? | Acids and Bases

Question

1.000 g of which salt, when titrated with 0.500 M HCl, gives the titration curve shown?

Potassium cyanide, KCN (M = 65.12, pKa of HCN = 9.2)

Sodium nitrite, NaNO₂ (M = 69.00, pKa of HNO₂ = 3.4)

Potassium phenoxide, K(C₆H₅O) (M = 116.20, pKa of C₆H₅OH = 9.9)

✓ Correct

Sodium pivalate, Na(C₄H₉COO) (M = 124.11, pKa of C₄H₉COOH = 4.9)

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