a) A buffer is prepared by mixing 41.2 mL of 0.183 M NaOH with 138.1 mL of 0.231 M acetic acid. What is the pH of this buffer? (The pKa for acetic acid is 4.75.) (b) Calculate the pH of this buffer after the addition of 0.179 g of solid NaOH.
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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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(a) A buffer is prepared by mixing 41.2 mL of 0.183 M NaOH with 138.1 mL of 0.231 M acetic acid. What is the pH of this buffer? (The pKa for acetic acid is 4.75.)
(b) Calculate the pH of this buffer after the addition of 0.179 g of solid NaOH.
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