Which of the following is not true of a compound with a large K₂ value? O It is a strong acid. It has a small pKa. Most of the protons associated with it will dissociate in solution. It has more than one donatable hydrogen associated with it.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Which of the following is not true of a
compound with a large Ka value?
It is a strong acid.
It has a small pKa.
Most of the protons associated with it will
dissociate in solution.
O It has more than one donatable hydrogen
associated with it.
Transcribed Image Text:Which of the following is not true of a compound with a large Ka value? It is a strong acid. It has a small pKa. Most of the protons associated with it will dissociate in solution. O It has more than one donatable hydrogen associated with it.
For any monoprotic compound, when does
pH = pka?
None of the above.
The answer cannot be determined without
more information.
When the conjugate base concentration equals
the acid concentration.
O When the conjugate base concentration is
much, much greater than the concentration of
the acid.
O When the acid concentration is much, much
greater than the concentration of the
conjugate base.
Ques 5
Which of the following is not necessary when
using a pH meter?
Neutralize the electrode with acid or base
depending on whether you are measuring a
basic or acidic solution, respectively.
Calibrate the pH meter at the start of the
experiment.
All of the above must be done.
O Completely submerge the electrode or probe
tip of the pH meter in teh solution being
measured.
Rinse the electrode with deionized water each
time prior to measuring pH.
Transcribed Image Text:For any monoprotic compound, when does pH = pka? None of the above. The answer cannot be determined without more information. When the conjugate base concentration equals the acid concentration. O When the conjugate base concentration is much, much greater than the concentration of the acid. O When the acid concentration is much, much greater than the concentration of the conjugate base. Ques 5 Which of the following is not necessary when using a pH meter? Neutralize the electrode with acid or base depending on whether you are measuring a basic or acidic solution, respectively. Calibrate the pH meter at the start of the experiment. All of the above must be done. O Completely submerge the electrode or probe tip of the pH meter in teh solution being measured. Rinse the electrode with deionized water each time prior to measuring pH.
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