How many milliliters of 1.07 M HCIO4 should be added to 1.90 g of imidazole to give a pH of 6.993? volume: mL

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases
Section: Chapter Questions
Problem 94GQ: Pyridine is weak organic base and readily forms a salt with hydrochloric acid....
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Ka reaction: C₂H₂N₂H+ + H₂O=C3H₂N₂ + H₂0+
Calculate the pH of a solution prepared by mixing 1.90 g of imidazole with 1.90 g of imidazole hydrochloride and diluting to
100.0 mL. The pKa of imidazole hydrochloride is 6.993.
pH =
Calculate the pH of the solution if 2.40 mL of 1.07 M HClO are added.
4
pH =
7.18
volume:
7.08
How many milliliters of 1.07 M HClO4 should be added to 1.90 g of imidazole to give a pH of 6.993?
mL
Transcribed Image Text:Ka reaction: C₂H₂N₂H+ + H₂O=C3H₂N₂ + H₂0+ Calculate the pH of a solution prepared by mixing 1.90 g of imidazole with 1.90 g of imidazole hydrochloride and diluting to 100.0 mL. The pKa of imidazole hydrochloride is 6.993. pH = Calculate the pH of the solution if 2.40 mL of 1.07 M HClO are added. 4 pH = 7.18 volume: 7.08 How many milliliters of 1.07 M HClO4 should be added to 1.90 g of imidazole to give a pH of 6.993? mL
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