Following are three organic acids and the pKa of each: barbituric acid, 5.00 ; butanoic acid 4.82; and lactic acid, 3.85
1. Calculate the Ka of each acid.
2. Explain which of the three the strongest acid is and which is the weakest.
3. Explain what info you would need to calculate which one of these three acids would need the most NaOH to reach a phenolphthalein endpoint.