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tanpanda136Lv1

6 Nov 2019

In a solution, when the concentrations of a weak acid and itsconjugate base are equal,

the -log of the [H+] and the -log of the Ka are equal.
the system is not at equilibrium.
the buffering capacity is significantly decreased.
all of the above are true.

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Elin HesselLv2

24 Jun 2019

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In a solution, when the concentrations of a weak acid and its conjugate base are equal, ________.

1.		the -log of the [H⁺] and the -log of the K_a are equal
2.		the buffering capacity is significantly decreased
3.		the system is not at equilibrium
4.		All of the above are true.

A good buffer generally contains relatively equal concentrations of weak acid and conjugate base. If you wanted to buffer a solution at pH = 4.00 or pH = 10.00, how would you decide which weak acid-conjugate base or weak base-conjugate acid pair to use? The second characteristic of a good buffer is good buffering capacity. What is the capacity of a buffer? How do the following buffers differ in capacity? How do they differ in pH?

0.01 M acetic acid/0.01 M sodium acetate

0.1 M acetic acid/0.1 M sodium acetate

1.0 M acetic acid/1.0 M sodium acetate

magentamammoth658

A good buffer generally contains relatively equal concentrations of weak acid and conjugate base. If you wanted to buffer a solution at pH = 4.00 or pH = 10.00, how would you decide which weak acid–conjugate base or weak base–conjugate acid pair to use? The second characteristic of a good buffer is good buffering capacity. What is the capacity of a buffer? How do the following buffers differ in capacity? How do they differ in pH?

0.01 M acetic acid/0.01 M sodium acetate

0.1 M acetic acid/0.1 M sodium acetate

1.0 M acetic acid/1.0 M sodium acetate

pucehamster19

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In a solution, when the concentrations of a weak acid and itsconjugate base are equal,

the -log of the [H+] and the -log of the Ka are equal.
the system is not at equilibrium.
the buffering capacity is significantly decreased.
all of the above are true.

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Principles of Chemistry Molecular Approach

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Principles of Chemistry: A Molecular Approach

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In a solution, when the concentrations of a weak acid and itsconjugate base are equal,the -log of the [H+] and the -log of the Ka are equal.the system is not at equilibrium.the buffering capacity is significantly decreased.all of the above are true.

Unlock all answers

Related textbook solutions

Basic Chemistry

Principles of Chemistry Molecular Approach

Principles of Chemistry Molecular Approach

Chemistry: Structure and Properties

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Principles of Chemistry: A Molecular Approach

Chemistry: The Central Science

Related questions

Weekly leaderboard

In a solution, when the concentrations of a weak acid and itsconjugate base are equal,

the -log of the [H+] and the -log of the Ka are equal.
the system is not at equilibrium.
the buffering capacity is significantly decreased.
all of the above are true.