(Solved): 1. Correctly identify the conjugate acid-base pairs in the following equation: HC2H3O2(I)+ ...

1. Correctly identify the conjugate acid-base pairs in the following equation: ${\mathrm{HC}}_2{\mathrm{H}}_3{\mathrm{O}}_2(\mathrm{I})+{\mathrm{H}}_2\mathrm{O}(\mathrm{I})?{\mathrm{H}}_3{\mathrm{O}}^{?}(\mathrm{aq})+{\mathrm{C}}_2{\mathrm{H}}_3{\mathrm{O}}_2^{?}\text{(aq) }$ A) ${\mathrm{HC}}_2{\mathrm{H}}_3{\mathrm{O}}_2/{\mathrm{H}}_2\mathrm{O}$ and ${\mathrm{H}}_2\mathrm{O}/{\mathrm{C}}_2{\mathrm{H}}_3{\mathrm{O}}_2^{?}$ B) ${\mathrm{HC}}_2{\mathrm{H}}_3{\mathrm{O}}_2/{\mathrm{H}}_2\mathrm{O}$ and ${\mathrm{H}}_3{\mathrm{O}}^{+}/{\mathrm{C}}_2{\mathrm{H}}_3{\mathrm{O}}_2^{?}$ C) ${\mathrm{HC}}_2{\mathrm{H}}_3{\mathrm{O}}_2/{\mathrm{C}}_2{\mathrm{H}}_3{\mathrm{O}}_2$ and ${\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}_3{\mathrm{O}}^{+}$ D) ${\mathrm{HC}}_2{\mathrm{H}}_3{\mathrm{O}}_2/{\mathrm{H}}_3{\mathrm{O}}^{+}$and ${\mathrm{H}}_2\mathrm{O}/{\mathrm{C}}_2{\mathrm{H}}_3{\mathrm{O}}_2^{?}$ 2. Correctly identify the missing product in the following acid-base reaction: ${\mathrm{NH}}_3(\mathrm{aq})+\mathrm{HCl}(\mathrm{aq})?{\mathrm{NH}}_4^{+}(\mathrm{aq})+$ A) ${\mathrm{Cl}}^{?}(\mathrm{aq})$ B) ${\mathrm{H}}_2{\mathrm{Cl}}^{?}(\mathrm{aq})$ C) ${\mathrm{Cl}}_2(\mathrm{aq})$ D) ${\mathrm{OH}}^{?}(\mathrm{aq})$ E) $\mathrm{Cl}(\mathrm{aq})$ 3. Which $\mathrm{pH}$ value indicates the highest concentration of ${\mathrm{H}}_3{\mathrm{O}}^{+}$? A) $\mathrm{pH}=11.5$ B) $\mathrm{pH}=12.9$ C) $\mathrm{pH}=7.0$ D) $\mathrm{pH}=5.2$ E) $\mathrm{pH}=6.3$