MHT CET20244 May 2024Morning ShiftChemistryIonic EquilibriumActual
Calculate the concentration of weak monobasic acid if its degree of dissociation and dissociation constant are 5.0 10⁻⁴ and 5.0 10⁻⁹ respectively.
Options
- A0.1 M
- B0.02 M
- C0.03 M
- D0.04 M
Correct answer
B. 0.02 M
Step-by-step solution
For a weak monobasic acid, aligned & K _ a = ^2 c & c = K _ a ^2 = 5.0 10⁻⁹ (5.0 10⁻⁴ )^2 = 1 10⁻⁹ 5 10⁻⁸ =0.02 M aligned