Practice Henderson-hasselbalch Equation (7.4.4)

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6 sample questions

Question 1.
What does the Henderson-Hasselbalch equation calculate?
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Think about what buffers do.
Question 2.
What is the formula for the Henderson-Hasselbalch equation?
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Remember, pH is related to pKa and the concentration ratios.
3Question 3.
What is the Henderson-Hasselbalch equation used for?
- Calculating pH of solutions
- Measuring concentration
- Determining molecular weight
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Focus on buffer applications.
4Question 4.
True or False: pKa indicates the strength of a weak acid.
- True
- False
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Remember the relation of pKa and acid strength.
Question 5.
Calculate the pH of a buffer solution containing 0.1 M acetic acid and 0.1 M acetate. pKa of acetic acid is 4.76. What will the pH be if you add 0.05 M of an acid?
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Remember to adjust concentrations for both components when an external acid is added.
Question 6.
If a buffer solution with a pKa of 7.4 has 0.1 M of its weak acid and a conjugate base concentration of 0.05 M, what is the pH? What happens if you add more base?
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Focus on the impact of changing the concentration of the conjugate base.

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