To explain: The reason why the pH of the temperature–equilibrated buffer is increased to 8.1 from 7.5.
Concept introduction: pH of a solution is denoted as the negative logarithm of the hydrogen ion concentration of that solution. The pH in a solution decreases as H+ ion concentration increases in the solution. The pH is a concentration measurement of hydrogen ions present in an aqueous solution. A buffer is the substance that minimizes the changes in the concentration of H+ and OH-.
To explain: How to avoid this change of pH of the temperature-equilibrated buffer.
Concept introduction: pH of a solution is denoted as the negative logarithm of the hydrogen ion concentration of that solution. The pH in a solution decreases as H+ ion concentration increases in the solution. The pH is a concentration measurement of hydrogen ions present in an aqueous solution. A buffer is the substance that minimizes the changes in the concentration of H+ and OH-.
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