H3O+ is just the actual form of the H+ ion in water. So this is just a matter of plugging into the pH formula after rearranging:
pH = -log[H+] so [H+] = 10-pH
Please consider a tutor. Take care.
Katelyn A.
asked • 07/09/22Chemistry 102: Acids: Concentration
Calculate the concentration of H3O+ ions present in a solution of HCl that has a measured pH of 4.310 .
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