Answer: The concentration of hydronium ions in a solution is [tex]1.26\times 10^{-4}[/tex]
Explanation:
pH is defined negative logarithm of hydrogen or hydronium ion concentration present in a solution. It is basically defined as the power of hydrogen ions in a solution.
Mathematically,
[tex]pH=-\log[H^+][/tex]
We are given:
pH of the solution = 3.9
Putting values in above equation, we get:
[tex]3.9=-\log[H^+][/tex]
[tex][H^+]=antilog(-3.9)[/tex]
[tex][H^+]=1.26\times 10^{-4}[/tex]
Hence, the concentration of hydronium ions in a solution is [tex]1.26\times 10^{-4}[/tex]
