Oxalic acid, HOOCCOOH, a weak diprotic acid, has pK a1 1 25 and pK a2 3 81 A related diprotic acid, suberic acid, HOOC(CH 2 ) 8 COOH has pK a1 4 21 and pK a2 5 40 Offer a plausible reason as to why the difference between pK a1 and pK a2 is so much greater for oxalic acid than for suberic acid ...

The difference in pKa1 and pKa2 for oxalic acid and suberic acid can be attributed to the electronic ...

Oxalic acid, HOOCCOOH, a weak diprotic acid, has pK a1 = 1.25 and pK a2 = 3.81.

Question:

Oxalic acid, HOOCCOOH, a weak diprotic acid, has pK_a1 = 1.25 and pK_a2 = 3.81. A related diprotic acid, suberic acid, HOOC(CH₂)₈COOH has pK_a1= 4.21 and pK_a2 = 5.40. Offer a plausible reason as to why the difference between pK_a1 and pK_a2 is so much greater for oxalic acid than for suberic acid.