1 Answer

Harshveer Singh · Answer 1 · 2023-03-17T14:39:42+0000

HCl is a strong acid, so in solution, it will release all the H+ ions that are in the molecule. Therefore, the concentration of HCl acid will be equal to the concentration of H+ ions.

The concentration of H+ ions can be found by means of the pH equation that says:

$pH=-log\lbrack H^+\rbrack$

where [H+] is the concentration (Molarity) of H+ ions (Hydronium).

By clearing the concentration of H+ we have:

$\lbrack H^+\rbrack=10^(-pH)$

We replace the value of pH into the equation:

$\lbrack H^+\rbrack=10^(-3)M=0.001M$

Answer: the hydronium concentration of an HCl solution with a pH of 3.0 is 0.001M

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