Sergey Bylikin, Gary Horner and, Brian Murphy Solutions for Chapter: Acids and Bases, Exercise 2: Quick questions

Identify the conjugate base of ${\mathrm{H}}_2\mathrm{O}$.

Identify the conjugate acid of ${\mathrm{OH}}^{-}$.

Identify the conjugate acid of ${\mathrm{H}}_2\mathrm{O}$.

Identify the conjugate acid of ${\mathrm{NH}}_3$.

Identify the conjugate acid of ${\mathrm{CO}}_3^{2-}$.

Identify the conjugate acid of ${\mathrm{HNO}}_3$.

Identify the conjugate acid of ${\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2$.

Identify the conjugate acid-base pairs in the following equations:

${\mathrm{HCO}}_3^{-}\left(\mathrm{aq}\right)+{\mathrm{S}}^{2-}\left(\mathrm{aq}\right)\rightleftharpoons {\mathrm{HS}}^{-}\left(\mathrm{aq}\right)+{\mathrm{CO}}_3^{2-}\left(\mathrm{aq}\right)$

${\mathrm{CH}}_3\mathrm{COOH}\left(\mathrm{aq}\right)+{\mathrm{HPO}}_4^{2-}\left(\mathrm{aq}\right)\rightleftharpoons {\mathrm{CH}}_3{\mathrm{COO}}^{-}\left(\mathrm{aq}\right)+{\mathrm{H}}_2{\mathrm{PO}}_4^{-}\left(\mathrm{aq}\right)$.