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4. A buffer is prepared by mixing 50.0 mL of 0.050 M NaHCO3 (84.01 g/mol) and 10.0 mL of 0.10 M NaOH (40.00 g/mol). How many mL of 1.0 M HCI (36.46 g/mol) must be added to change the pH of the buffer solution by 0.15 units? Kai (H2CO3)=4.5×107 Kaz (H2CO3)=4.7×10-11

4. A buffer is prepared by mixing 50.0 mL of 0.050 M NaHCO3 (84.01 g/mol) and 10.0 mL of 0.10 M NaOH (40.00 g/mol). How many mL of 1.0 M HCI (36.46 g/mol) must be added to change the pH of the buffer solution by 0.15 units? Kai (H2CO3)=4.5×107 Kaz (H2CO3)=4.7×10-11

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.141QP: Ka for formic acid is 1.7 104 at 25C. A buffer is made by mixing 529 mL of 0.465 M formic acid,...
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4. A buffer is prepared by mixing 50.0 mL of 0.050 M NaHCO3 (84.01 g/mol) and 10.0 mL of 0.10 M NaOH (40.00 g/mol). How many mL of 1.0 M HCI (36.46 g/mol) must be added to change the pH of the buffer solution by 0.15 units? Kai (H2CO3)=4.5×107 Kaz (H2CO3)=4.7×10-11
Transcribed Image Text:4. A buffer is prepared by mixing 50.0 mL of 0.050 M NaHCO3 (84.01 g/mol) and 10.0 mL of 0.10 M NaOH (40.00 g/mol). How many mL of 1.0 M HCI (36.46 g/mol) must be added to change the pH of the buffer solution by 0.15 units? Kai (H2CO3)=4.5×107 Kaz (H2CO3)=4.7×10-11
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