Constants Periodic Tab Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins. It is also a component of cigarette smoke. Pyridine ionizes in water as follows: CSHSN + H2O , C;HSNH + OH The pKb of pyridine is 8.75. What is the pH of a 0.300 M solution of pyridine? Express the pHnumerically to two decimal places. > View Available Hint(s) pH =

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
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Chapter21: Potentiometry
Section: Chapter Questions
Problem 21.14QAP
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O Aura Clock Web by Gr X
0.20 g of hydrogen ch
L ph units - Search
4&OpenVellumHMAC=e4fe76139b273f40d24cb86c6149d... Q
11 of 11
Constants | Periodic Table
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins. It is also a component of cigarette smoke. Pyridine
ionizes in water as follows:
CSH5N | H2O , CSHSNH + OH
The pKb of pyridine is 8.75. What is the pH of a 0.300 M solution of pyridine?
Express the pH numerically to two decimal places.
> View Available Hint(s)
νη ΑΣφ
pH =
Submit
Part B
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications.
and personal hygiene products. Benzoic acid dissociates in water:
C6HSCOOH C6H5C00 + H+
The pKa of this reaction is 4.2. In a 0.62 M solution of benzoic acid, what percentage of the molecules are ionized?.
Express the percentage numerically using two significant figures.
> View Available Hint(s)
percent ionized =
P Pearson
9:20 PM
2/13/2022
Transcribed Image Text:O Aura Clock Web by Gr X 0.20 g of hydrogen ch L ph units - Search 4&OpenVellumHMAC=e4fe76139b273f40d24cb86c6149d... Q 11 of 11 Constants | Periodic Table Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins. It is also a component of cigarette smoke. Pyridine ionizes in water as follows: CSH5N | H2O , CSHSNH + OH The pKb of pyridine is 8.75. What is the pH of a 0.300 M solution of pyridine? Express the pH numerically to two decimal places. > View Available Hint(s) νη ΑΣφ pH = Submit Part B Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications. and personal hygiene products. Benzoic acid dissociates in water: C6HSCOOH C6H5C00 + H+ The pKa of this reaction is 4.2. In a 0.62 M solution of benzoic acid, what percentage of the molecules are ionized?. Express the percentage numerically using two significant figures. > View Available Hint(s) percent ionized = P Pearson 9:20 PM 2/13/2022
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pH is a measure of acidity or basicity of a solution. It is defined as the negative logarithm of H+ concentration.

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