A. *carboxylic acid* or *carboxylate* the molecule serving as each of the following in the Bronsted-Lowry equilibrium acid conjugate base base conjugate acid R-COOH R-COO +H* B. Express Ka as the ratio of reactants and products. In the box below, complete the expression of Ka by dragging the applicable terms from the equilibrium to the appropriate location in the expression of Ka. [R-COOH] [R-Coo] + [H ] K = a C. The pka for the ionization is 4.76. 1. If HCl is added, state whether each of the following increases, decreases, or stays the same. [H*] [R-CO0]/ [R-COOH] 2. Determine the pH in which the concentrations of the acid and conjugate bases are the equal. 3. How does the [R-COO] / [R-COOH] compare with 1, if the pH is 7.4? 4. The total of all R molecules in solution may be expressed as [R], is [R] = [R-COO] + [R-COOH]. Which type of functional group is most abundant among R molecules based on the following? lonized or neutral (no charge). Base or acid