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Since soap and detergent action is hindered by hard water, laundry formulations usually

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 139 Chapter 16

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 139

Since soap and detergent action is hindered by hard water, laundry formulations usually include water softenerscalled buildersdesigned to remove hard water ions (especially Ca2+ and Mg2+ ) from the water. A common builder used in North America is sodium carbonate. Suppose that the hard water used to do laundry contains 75 ppm CaCO3 and 55 ppm MgCO3 (by mass). What mass of Na2CO3 is required to remove 90.0% of these ions from 10.0 L of laundry water?

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PSYCHOLOGY 110 Notes (Spring 2016) Alex Ka Chapter 1- Psychology and Scientific thinking 1. Defining Psychology a. Scientific study of the mind, brain and behavior b. Psychology involves a. Multiple levels of analysis 1. Ex) the flu (multiple symptoms) b. Multiple determinants for observable...

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Chapter 16, Problem 139 is Solved
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Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

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