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Maleic acid (H2A) is a weak polyprotic acid with two acidic protons. Figure 1 below presents the measured pH of 0.100 M maleic acid with an initial volume of 25.00 mL as it is titrated with a strong base, 0.100 M NaOH. Write down the primary reaction/s controlling the pH at each of the points on Figure 1 indicated in the table below. If there are two reactions, write them in the sequence that they occur: Volume At this point in the titration the pH is determined of 14 by the following reactions: 12 Second equivalence point (pH 9.4) NaOH added (mL) 10 First equivalence point (pH - 4.11 10 10 20 30 40 50 60

Maleic acid (H2A) is a weak polyprotic acid with two acidic protons. Figure 1 below presents the measured pH of 0.100 M maleic acid with an initial volume of 25.00 mL as it is titrated with a strong base, 0.100 M NaOH. Write down the primary reaction/s controlling the pH at each of the points on Figure 1 indicated in the table below. If there are two reactions, write them in the sequence that they occur: Volume At this point in the titration the pH is determined of 14 by the following reactions: 12 Second equivalence point (pH 9.4) NaOH added (mL) 10 First equivalence point (pH - 4.11 10 10 20 30 40 50 60

Introduction to General, Organic and Biochemistry
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter8: Acids And Bases
Section: Chapter Questions
Problem 8.81P
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Maleic acid (H2A) is a weak polyprotic acid with two acidic protons. Figure 1 below presents the measured pH of 0.100 M maleic acid with an initial volume of 25.00 mL as it is titrated with a strong base, 0.100 M NaOH. Write down the primary reaction/s controlling the pH at each of the points on Figure 1 indicated in the table below. If there are two reactions, write them in the sequence that they occur: Volume At this point in the titration the pH is determined of 14 by the following reactions: 12 Second equivalence point (pH 9.4) NaOH added (mL) 10 First equivalence point (pH - 4.11 10 10 20 30 40 50 60
Transcribed Image Text:Maleic acid (H2A) is a weak polyprotic acid with two acidic protons. Figure 1 below presents the measured pH of 0.100 M maleic acid with an initial volume of 25.00 mL as it is titrated with a strong base, 0.100 M NaOH. Write down the primary reaction/s controlling the pH at each of the points on Figure 1 indicated in the table below. If there are two reactions, write them in the sequence that they occur: Volume At this point in the titration the pH is determined of 14 by the following reactions: 12 Second equivalence point (pH 9.4) NaOH added (mL) 10 First equivalence point (pH - 4.11 10 10 20 30 40 50 60
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