As the pH number of an acid decreases, what happens to the strength of the acid?
First, let's begin with some definitions:
- In the Bronsted-Lowry definition, acids are donors of
- Strong acids are those that almost completely ionise in aqueous solutions to form these
#H^+#ions. #pH#is the negative #log#of the concentration of hydrogen cations ( #[H^+]#) in an aqueous solution.
Let's plug some numbers in for
We can see that, as
We defined a strong acid as one that almost completely ionises in aqueous solutions to form
Therefore, as the