Acetyl salicylic acid i.e. aspirin ionises in water as:
\(HC_9H_7O_4+H_2O \rightleftharpoons H_3O^+ + C_9H_7O^-\); Ka=2.75 x 10-9.
What is the pH of the solution obtained by dissolving two tablets of aspirin in 250 mL of water? Assume that each tablet contains 0.32 gm of acetyl salicyclic acid.
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Cracked By:
Anit Kumar Sahu, 12th, Ispat English Medium School, Sector-20, Rourkela
Answer: 5.2