Explain the following observations: (a). NH3 contains no OH ions, and yet its aqueous solutions are basic; b. HF is called a weak aced, and yet it is very reactive; c. although sulfuric acid is a strong electrolyte , an aqueous solution of H2SO4 contains more HSO4 negative ions than SO subscript 4, superscript 2- ions.
I am totally lost on this. Any help is appreciated.