Buffers
Authored by Matthew Owen
Chemistry
10th - 12th Grade
NGSS covered
Used 422+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Buffer is defined as
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acidic buffer is made up of
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which solution A and B of equal volume and concentration mixed together to form a buffer?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which combination will form a buffer solution?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When making a buffer of pH = 5, acids with the following Ka values are available. Which would be the best acid to use?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which pair is the most effective buffer?
Ka of HIO is 1.7 x 10-11
Ka of HF is 3.5 x 10-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A buffer has a pH of 4.85 and contains formic acid and potassium formate. What can you conclude about the concentrations of the components of the buffer? The Ka of formic acid is 1.8 x 10-4.
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