Question
Asked Mar 31, 2019
3 views

5) Part 1

Calculate the pH at the stoichiometric point when 25 mL of 0.10 M pyridine is titrated with 0.32 M HCl.

 

check_circle

Expert Answer

star
star
star
star
star
1 Rating
Step 1

Pyridine ( a weak base) reacts with HCl ( a strong acid ) to undergo neutralisation reaction to form pyridinium chloride.The balanced chemical equation goes as:

fullscreen
Step 2

At stoichiometric point, the acid and the base gets neutralised completely. Thus, the solution remaining is a salt solution in which the salt undergoes hydrolysis. The pH of a salt solution of a weak base and strong acid is given by the expression:

fullscreen
Step 3

pKb = -log Kb is a measure of the strength of the base. Its value is not mentioned, I am solving the problem, taking the general value of pKb for...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Other

Related Chemistry Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: 2+ 6. (a) List the formula for each observed Cu(EN),ion, its max and its color.

A: The coordination complexes can be defined as the complex compounds which have coordinate linkage bet...

question_answer

Q: How are ionic bonds and covalent bonds different? Why is F2 a nonpolar molecule, but H2O is a polar ...

A: Covalent bonds are much more common in organic chemistry than ionic bonds.In covalent bonds, atoms s...

question_answer

Q: A buffer solution contains 0.254 M NaHSO3 and 0.348 M Na2SO3. If 0.0285 moles of hydroiodic acid are...

A: A buffer resists a considerable change in pH when a small amount of acid or base is added to it. The...

question_answer

Q: Predict the ratios of products that result from chlorination of isopentane (2-methylbutane). please ...

A: The percentage and name of monochlorinated products formed in the chlorination of 2-methylpentane ar...

question_answer

Q: 7. Provide the major organic product of the following reaction sequence. 1. Mg 2. CO2 3. H,0*, A -Br

A: Grignard Reaction is an organometallic reaction in which different alkyl, aryl-magnesium halides add...

question_answer

Q: How to write a chemical equation for: _______Cu (s) + _____ O2 (g) ---> ______   Could you provid...

A: The given equation is to be completed-

question_answer

Q: 3. Which of the following is the Lewis dot structure for the fluoride ion? a. b. c.

A: The fluorine atom forms fluoride, which has 8 valence electrons, and is isoelectronic with a Noble G...

question_answer

Q: Consider the reactionCaCO3(s)CaO(s)+ CO2(g)Using the standard thermodynamic data in the tables linke...

A: The decomposition of calcium carbonate results in the formation of calcium oxide and carbon dioxide ...

question_answer

Q: A quantity of 2.30 x 102 mL of 0.850 M HNO3 is mixed with 2.30 x 102 mL of 0.425 M Ba(OH)2 in a cons...

A: The balanced equation for the given reaction is,