Which solution has the lower pH? a. 0.1 M HCl or 0.1 M HC_2 H_3 O_2 b. 0.1 M NaOH or 0.1 M NH_3 (aq) c. 0.1 M Na_2 CO_3 or 0.1 M NaCl Acetic acid, HC_2 H_3 O_2, is a weak acid that is in equilibrium in the following given reaction: a. Identify the acid and its conjugate base in the reaction above b. Identify the base and its conjugate acid in the reaction above c. Which way will the equilibrium shift if a strong acid is added to the system? d. If a strong base is added to the solution, which way will the equilibrium shift?