KVPY2017ChemistryIonic Equilibrium
The pH of 0.1 M acetic acid solution is closest to [Dissociation constant of acid K _ a =1.8 10⁻⁵ ]
Options
- A2.87
- B1.00
- C2.07
- D4.76
Correct answer
A. 2.87
Step-by-step solution
[ H ⁺ ]= K _ a c = 1.8 10⁻⁵ 0.1 = 1.8 10⁻³ pH =3- (1.34)=2.87