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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

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter15: Complex Ion And Precipitation Equilibria
Section: Chapter Questions
Problem 11QAP: A buffer is prepared by dissolving 0.0250 mol of sodium nitrite, NaNO2, in 250.0 mL of 0.0410 M...
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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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