Bronsted Lowry Theory of Acids and Bases

Q. If the concentration of hydronium ions in a solution is ${10}^{-4}\text{M}$, then the pH of this solution is:

1. 4

Q. ${\text{NH}}_3$ cannot release ${\text{OH}}^{-}$ ions. It is .

1. a base
2. an acid
3. neutral