c) A student titrated 50.0 mL of a 0.10 M solution of a certain weak acid with NaOH. The results are given in the graph above. I) What is the approximate pKa of the acid? II) What specific value from the graph is needed, in addition to the information in part c above, to calculate the molar concentration of the NaOH? III) Identify a pH value between 2.5 and 7.5 at which the concentration of the weak acid being titrated is less than the concentration of the conjugate base.
c) A student titrated 50.0 mL of a 0.10 M solution of a certain weak acid with NaOH. The results are given in the graph above. I) What is the approximate pKa of the acid? II) What specific value from the graph is needed, in addition to the information in part c above, to calculate the molar concentration of the NaOH? III) Identify a pH value between 2.5 and 7.5 at which the concentration of the weak acid being titrated is less than the concentration of the conjugate base.
Chapter19: Applications Of Standard Electrode Potentials
Section: Chapter Questions
Problem 19.13QAP
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c) A student titrated 50.0 mL of a 0.10 M solution of a certain weak acid with NaOH. The results are
given in the graph above.
I) What is the approximate pKa of the acid?
II) What specific value from the graph is needed, in addition to the information in part
c above, to calculate the molar concentration of the NaOH?
III) Identify a pH value between 2.5 and 7.5 at which the concentration of the weak acid being
titrated is less than the concentration of the conjugate base.
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