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Unformatted text preview: stable and explain why. O O 6. Explain (using B as comparison) why the pK a1 of A is so low and the pK a2 of A is so high. COOH COOH HOOC COOH pK a1 = 1.92 pK a2 = 6.23 pK a1 = 3.02 pK a2 = 4.39 A B 7. Indicate which structures are aromatic(A), antiaromatic(AA) or nonaromatic(NA). If aromatic or antiaromatic indicate number of electrons in closed loops: O O H N N N S 8. Explain why the acid on the left is stronger than the acid on the right: O O HOOC H H COOH 9. Explain the differences between pK a1 and pK a2 values for two dicarboxylic acids given below: COOH COOH COOH COOH pK a1 = 2.98 pK a2 = 5.28 pK a1 = 3.51 pK a2 = 4.82...
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