9th Edition

ISBN: 9781133949640

Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher: Cengage Learning

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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 4, Problem 123IL

Oyster beds in the oceans require chloride ions for growth. The minimum concentration is 8 mg/L (8 parts per million). To analyze for the amount of chloride ion in a 50.0-mL sample of water, you add a few drops of aqueous potassium chromate and then titrate the sample with 25.60 mL of 0.001036 M silver nitrate. The silver nitrate reacts with chloride ion, and, when the ion is completely removed, the silver nitrate reacts with potassium chromate to give a red precipitate.

(a) Write a balanced net ionic equation for the reaction of silver nitrate with chloride ions.
(b) Write a complete balanced equation and a net ionic equation for the reaction of silver nitrate with potassium chromate, indicating whether each compound is water-soluble or not.
(c) What is the concentration of chloride ions in the sample? Is it sufficient to promote oyster growth?

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Chapter 4 Solutions

Chemistry & Chemical Reactivity

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Solution Summary: The author explains that the balanced net ionic equation for the reaction of silver nitrate with chloride ions is written in accordance with the Law of conservation of mass.

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Chapter 4 Solutions