Answer:
concentration of H ions = 0.0001 M
Explanation:
Base 10 logarithm of the H+ concentration when multiplied by -1 is equal to the pH value of a solution. By reversing this formula, we can find the concentration of the H+ in the solution:
pH = [tex]-[/tex]㏒ [tex](concentration of H+)[/tex]
or [tex]10^{-pH} =[/tex] = concentration of H+
We know that, pH of the solution is 4.0,
so [tex]10^{-4}[/tex] = [tex]0.0001[/tex]
Therefore, the concentration of Hydrogen ions in a solution of pH = 4 is 0.0001 M.
