Hydrogen Ion Concentration Calculations Tutorial
- The hydrogen ion concentration in a solution, [H+], in mol L-1, can be calculated if the pH of the solution is known.
- pH is defined as the negative logarithm (to base 10) of the hydrogen ion concentration in mol L-1
pH = -log10[H+]
where [H+] is the concentration of hydrogen ions in mol L-1 (mol/L or M)
- [H+] in mol L-1 can be calculated using the equation (formula):
[H+] = 10-pH
- As the pH increases, the concentration of hydrogen ions in the solution decreases.
As the pH decreases, the concentration of hydrogen ions in the solution increases.