This video lecture from Alcohols, Phenols and Ethers (F.Sc. second year Chemistry) covers the quantitative aspects of acidity of solutions and compounds. It gives a detailed overview of acid dissociation constant and its logarithmic equivalent pKa and pH. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.