Chapter 12.2, Problem 13PP

Classify the solute represented in each of the following equations as a strong, weak, or nonelectrolyte:
a. ${\text{K}}_2{\text{SO}}_4(s)\stackrel{{\text{H}}_2\text{O}}{\to }2 {\text{K}}^{+}(aq)+{\text{SO}}_4^{2-}(aq)$
b. ${\text{NH}}_3(g)+{\text{H}}_2\text{O}(l)\rightleftarrows {\text{NH}}_4^{+}(aq)+{\text{OH}}^{-}(aq)$
c. ${\text{C}}_6{\text{H}}_{12}{\text{O}}_6(s)\stackrel{{\text{H}}_2\text{O}}{\to }{\text{C}}_6{\text{H}}_{12}{\text{O}}_6(aq)$