Question #ad39f
1 Answer
May 11, 2014
The pH = -log[H+]. In this question the molar concentration is
2.05 x10- 5.
pH = -log[ 2.05 x 10-5]
pH= 4.688.
Strong acids, like HCl, ionizes completely.
HCl <--> H+ + Cl-
Since there is a 1 to 1 stoichiometric ratio between the acid and the hydrogen ion concentration, the concentration of the hydrogen ion is the same as the HCl concentration.
I hope that this is helpful.
