7th Edition

ISBN: 9781119360889

Author: HYSLOP

Publisher: VST

Concept explainers

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

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Textbook Question

Chapter 16, Problem 165RQ

Why must the acid used for a buffer have a p K a within one pH unit of the pH of the buffer? What happens if that condition is not met?

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Chapter 16, Problem 164RQ

Chapter 16, Problem 166RQ

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4. Human blood is slightly basic in nature with a normal pH range of 7.35-7.45. The blood pH is maintained by the carbonic acid-bicarbonate buffer system, shown by the following equilibrium reaction. H2CO3 + H2O H,O* + HCO3 a) If you add a small amount of an acid to this buffer, then which component of the carbonic acid-bicarbonate buffer will react with the added acid? Explain.

A series of carbonic acid or carbonate buffers regulate pH in blood within the human body. The kidneys and the lungs work together to help maintain a blood pH of 7.4 by affecting the components of the buffers in the blood. What conjugate acid/base pair is the main component in the buffer? Write out the chemical reaction that the conjugate pair undergoes in water. What is the ratio of the acid to the base? What is the ideal pH range for this buffer? Is the pH of blood within the ideal range of the buffer? If it is not, what is the physiological reason that the body would have for still using a carbonate buffer as opposed to another conjugate pair?

Select the statement or statements that are true about buffer solutions: Buffer solutions consist of a strong acid and its conjugate base. The pH of a buffer solution never changes, even when a large amount of strong acid or base is added. Buffer solutions resist a change in pH by shifting the position of their equilibria to counteract the addition of H3O+ or OH−.

Chapter 16 Solutions

EBK STUDY GUIDE TO ACCOMPANY CHEMISTRY:

Ch. 16 - Prob. 1PE Ch. 16 - Practice Exercise 16.2 An aqueous solution of...Ch. 16 - Practice Exercise 16.3 Water draining from old...Ch. 16 - Because rain washes pollutants out of the air, the...Ch. 16 - Practice Exercise 16.5 Find the values of and ...Ch. 16 - Practice Exercise 16.6 Calculate the . (Hint: is...Ch. 16 - Practice Exercise 16.7 Calculate the , and pH in a...Ch. 16 - For each of the following acids, write the...Ch. 16 - For each of the following acids, write the...Ch. 16 - Practice Exercise 16.10 Use Table 16.2 to find all...

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