Chemistry Class 11 NCERT Solutions: Chapter 7 Equilibrium Part 15 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Q: 46. The ionization constant of acetic acid is Calculate the degree of dissociation of acetic acid in its 0.05 M solution. Calculate the concentration of acetate ion in the solution and its pH.

Structure of Ionization Constant of Acetic Acid


Method 1



Since :

Method 2

Degree of dissociation,


Thus, concentration of


Hence, the concentration of acetate ion in the solution is 0.00093 M and its pH is .

Q: 47. It has been found that the pH of a 0.01 M solution of an organic acid is . Calculate the concentration of the anion, the ionization constant of the acid and its


Let the organic acid be HA.

Concentration of HA = 0.01 M


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