Four tablet samples (1.6308 g) which contain acetylsalicylic acid were dissolved in a 100 mL water/ethanol mixture. A 25-mL aliquot was obtained and titrated with standard 0.1273 N NaOH solution using a pH meter. The potentiometric data are given below. Calculate the % acetylsalicylic acid (EW=180.157 g/mol) per tablet. Prove that the active ingredient is indeed acetylsalicylic acid (pKa=3.48).
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Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
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Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
Four tablet samples (1.6308 g) which contain acetylsalicylic acid were dissolved in a 100
mL water/ethanol mixture. A 25-mL aliquot was obtained and titrated with standard
0.1273 N NaOH solution using a pH meter. The potentiometric data are given below.
Calculate the % acetylsalicylic acid (EW=180.157 g/mol) per tablet. Prove that the active
ingredient is indeed acetylsalicylic acid (pKa=3.48).
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