AP EAMCET202021 Sep 2020Morning ShiftChemistryIonic EquilibriumActual
The ( pH ) of (10⁻⁸ M HCl ) solution is
Options
- A8
- B-8
- CBetween 7-8
- DBetween 6-7
Correct answer
D. Between 6-7
Step-by-step solution
( HCl ) is a strong acid. All the acids have ( pH ) in the acidic range, i.e. below 7. The concentration of ( HCl ) is given as (10⁻⁸ M ). pH is calculated based on the protons of the acid and the water. (10⁻⁸ M ) is a very low concentration and hence the protons from water are also considered. This gives the value of the ( pH ) of about 6.8 which is very close to 7 . Thus, the correct answer is option (d).