Concentration of Hydronium ions in the Acetic acid is [tex]1.58\times10^{-5}[/tex]
Calculation of concentration of acid:
pH of a solution is defined by the concentration of Hydronium ions in the solution.
Also, pH is defined as the negative of logarithm of [tex]log[H^+][/tex]
[tex]pH= -log[H^+][/tex]
pH of Acetic acid= 4.8
Therefore,
[tex]4.8= -log[H^+][/tex]
Taking antilog, we get
[tex][H^+] = 0.0000158M= 1.58\times10^{-5}M[/tex]
The Hydronium concentration of the acetic acid is [tex]1.58\times 10^{-5}[/tex]M.
As Acetic acid is a weak acid which means that ionization of acid is not complete, ie. 100%
That is why the concentration of Hydronium ions are less in the solution.
Learn about the pH here,
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