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Write your answer in the space provided. Show your calculations to get full credit. Explain why the buffering capacity of a solution is limited to one pH value above and below the bufferʼs pK value.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

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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Explain why the buffering capacity of a solution is limited to one pH value above and below the bufferʼs pK value.

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Similar questions

How many grams of sodium acetate (CH3CO2Na, Mw =82.0 g/mole) should be present in 1.0 L of 0.65 mole acetic acid (CH3CO2H) solution to achieve a buffer of pH = 4.47? K = 1.78 × 10 for benzoic acid. Please keep your answer to one decimal place.
Give good solution Asap Buffer A: CH3COOH 40.0 mL; NaOH 20.0 mL; H2O 20 mL Buffer B: CH3COOH 40.0 mL; NaOH 30.0 mL; H2O 10 mL Please identify how the buffer capacity of Buffer A and Buffer B change if the volume of water added was doubled. And does the the buffer capacity increase, decrease, or remain the same. Pleas explain why in detail?
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Your goal is to make a buffer with a pH of 4.75 from acetic acid and sodium acetate. Assume the pKa for acetic acid is 4.74. What is the volume of 1 M sodium acetate added to make your buffer? Report your answer to the tenths place. To do this, we use the Henderson-Hasselbach Equation pH = pkA + log (base/acid) where pkA = 4.74 for acetic acid, pH = target pH and [base] /[acid] = x/(1-x) since we don't know the concentration of the base, we will call it x the acid is just 1-x, assuming the two add up to 100% solve for x, and then you know the mL of base and acid to add.
Imagine you are working in the lab, and your labmate Jordan has challenged you to figure out which one of the following acetic acid/sodium acetate buffer solutions has the greatest buffering capacity at a pH above 4.74. pKa(acetic acid) = 4.74. Can you pick the solution with the highest buffering capacity at a pHabove 4.74? pKa(acetic acid) ? 0.36 M acetic acid and 0.12 M sodium acetate 0.16 M acetic acid and 0.12 M sodium acetate 0.36 M acetic acid and 0.22 M sodium acetate 0.16 M acetic acid and 0.22 M sodium acetate
What is a buffer solution? How would an 0.5 M acetic acid/acetate buffer solution respond to the addition of 0.1 M KOH? Write your full answer in the textbox.
I know that the correct answer is a. But I just don't how to get to the correct answer.
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Calculate the pH of a buffer composed of 0.322 M acetic acid and 0.381 M potassium acetate. K, = 1.80 x 10-5 %3D Report your answer with the correct number of significant figures.
Please answer 1 & 2.