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- Acid-Base Equilibria Many factors contribute to the acidity of organic compounds. Electronegativity, resonance, induction, hybridization, aromaticity, and atomic size, all play a role. In the following comparisons, you are asked to identify the factor(s) that would be most important to analyze when predicting relative acidity, and then to predict the trend in acidity and pKa values. For each of the following pairs of compounds answer the following two multiple-choice questions. 1. What factor(s) are the most important to consider when predicting the relative acidity of the two compounds? a. Electronegativity of the atom possessing the hydrogen. b. Resonance stabilization of the anionic conjugate base. c. Inductive stabilization of the anionic conjugate base. d. Hybridization of the atom possessing the hydrogen. e. The atomic size of the atom possessing the hydrogen.(a) Given that Ka for acetic acid is 1.8 x 10-5 and that forhypochlorous acid is 3.0 x 10-8, which is the stronger acid?(b) Which is the stronger base, the acetate ion or the hypochloriteion? (c) Calculate Kb values for CH3COO- and ClO-.I'm asked to "assume that ozempic is in a solution at pH = 7. Draw the functional groups at their correct protonation form". For this, would I make all of the carboxyl groupsgo from COOH to COO-? and then the amide groups go from CONH to CONH3 + ? What about ether groups (COC) ?
- You are looking at extracting a pyridine-bearing compound (conjugate acid pKA-4) from an organic phase and transfer it to the aqueous phase. Which of the following aqueous solutions can you use to do so? IM NGOH,pH 14 water, pH 7 saturated NH4Cl,pH 5 1MHCl, pH 11a) Consider the reaction AH(+) + H₂O A: + H3O+). For the following named acids: a) draw the structure of the acid, b) give the approximate pKa of the conjugate acid in units of 5, c) give the name of the conjugate base, and d) draw the structure of the conjugate base. p-Toluenesulfonic acid acid Conjugate base Imidazolium cation pka_ pKa iso-Propanol pKa Acetylene pKa9. Consider the neutral base pyrrolidine, C4H9N, designated B. (a) Which is the predominant species, B or BH¹, at pH 11? At pH 12? (b) At what pH is [BH] = [B]? (c) What is the quotient [B]/[BH] at pH 12.00? at pH 2.00?
- 1) Complete the following reactions and identify the acid, base, conjugate acid and conjugate base. CH;CH,NH2 (aq) + H2O (1) a) CH;COOH (aq) + H,O (I) b) c) Identify the conjugate base and conjugate acid of each of the following. Conjugate Base Molecule Conjugate Acid HCO3 H20 HSO4- H2PO4What is the conjugate acid of H2C6H7O5 -1aq2? What is its conjugate base?Fill in the left side of this equilibrium constant equation for the reaction of diethylmethylamine (C,H13N), a weak base, with water. Ü - K,
- For the amino acid glutamate, what fraction of the side-chain (R-group) will be ionized at pH = 3.5? At pH = 5.0?Consider the structure of the amino acid I-alanine. Draw the structure of L-alanine at pH=6 L-alanine at pH=2 L-alanine at pH=10What would be the conjugate base of HSO4- ? Express your answer as a chemical formula.