Concept explainers
(a)
Interpretation:
1.0 mmol of lactic acid is titrated with NaOH(aq) to a final volume of 100 mL at the equivalence point during a series of planned titrations of lactic acid CH3CH(OH)COOH (pKa=3.86) is planned. The acid-base indicator used for the titration needs to be determined.
Concept introduction:
A buffer solution is prepared from a weak acid and its conjugate base. Similarly, it can be prepared from a weak base with conjugate acid. It usually works by reacting with any acid or base added to it to control the pH.
(b)
Interpretation:
1.00mmol of lactic acid is titrated with NaOH(aq) to a final volume of 100 mL at the equivalence point during a series of planned titrations of lactic acid CH3CH(OH)COOH (pKa=3.86) is planned. The suitable combination for the buffer solution needs to be determined.
Concept introduction:
A buffer solution is prepared from a weak acid and its conjugate base. Similarly, it can be prepared from a weak base with conjugate acid. It usually works by reacting with any acid or base added to it to control the pH.
(c)
Interpretation:
1.00 mmol of lactic acid is titrated with NaOH(aq) to a final volume of 100 mL at the equivalence point during a series of planned titrations of lactic acid CH3CH(OH)COOH (pKa=3.86) is planned. The ratio of conjugate base to acid required in the buffer needs to be determined.
Concept introduction:
A buffer solution is prepared from a weak acid and its conjugate base. Similarly, it can be prepared from a weak base with conjugate acid. It usually works by reacting with any acid or base added to it to control the pH.
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General Chemistry: Principles and Modern Applications (11th Edition)
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