The following plot shows a titration curve for the titration of 1.00 L of 1.00 M diprotic acid H 2A with NaOH. 12 0.50 1.00 1.50 2.50 3.00 2.00 Moles of OH added Which point a-d represents the HXX2" buffer region? Opoint a O point b point c point d QUESTION 4 Which has the lowest entropy? OCH₂OH( 15°C) CH₂OH(, 27°C) CH₂OH(s, -25°C) CH₂OH(-13°C) Hd 10

The following plot shows a titration curve for the titration of 1.00 L of 1.00 M diprotic acid H 2A with NaOH. 12 0.50 1.00 1.50 2.50 3.00 2.00 Moles of OH added Which point a-d represents the HXX2" buffer region? Opoint a O point b point c point d QUESTION 4 Which has the lowest entropy? OCH₂OH( 15°C) CH₂OH(, 27°C) CH₂OH(s, -25°C) CH₂OH(-13°C) Hd 10

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter14: Acid- Base Equilibria

Section: Chapter Questions

Problem 118CP: Malonic acid (HO2CCH2CO2H) is a diprotic acid. In the titration of malonic acid w ith NaOH,...

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Malonic acid (HO2CCH2CO2H) is a diprotic acid. In the titration of malonic acid w ith NaOH, stoichiometric points occur at pH = 3.9 and 8.8. A 25.00-mL sample of malonic acid of unknown concentration is titrated with 0.0984 M NaOH, requiring 31.50 mL of the NaOH solution to reach the phenolphthalein end point. Calculate the concentration of the initial malonic acid solution. (Sec Exercise 113.)
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