# What is the conjugate acid of ClO4-?

##### 1 Answer
Nov 12, 2015

Here's how you go about acid/base chemistry

#### Explanation:

The Bronsted-Lowry definition of an acid is a proton donator and a base is a proton acceptor. A proton is synonymous to a ${H}^{+}$ ion, so acid/ base chemistry is all about the ${H}^{+}$.

We can observe that the ion you were given, $C l {O}_{4}^{_}$ has a one negative charge. meaning it has the capacity to accept on ${H}^{+}$.

Therefore, its conjugate acid is $H C l {O}_{4}$. Notice the neutral charge and the presence of the ${H}^{+}$. That's the giveaway you're looking for.

Hope that helps!