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An aqueous antifreeze solution is 40.0% ethylene glycol

Chemistry | 8th Edition | ISBN: 9780547125329 | Authors: Steven S. Zumdahl ISBN: 9780547125329 153

Solution for problem 30 Chapter 11

Chemistry | 8th Edition

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Chemistry | 8th Edition | ISBN: 9780547125329 | Authors: Steven S. Zumdahl

Chemistry | 8th Edition

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Problem 30

An aqueous antifreeze solution is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3 . Calculate the molality, molarity, and mole fraction of the ethylene glycol.

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Gen Chem Notes:  Determining rate orders: ­ For this experiment we will solve for the rate orders. ­ To determine A, we will want to look for a spot where A changes but the value of B stays the same. Therefore, we may compare experiments 1 and 2. Between these experiments A doubles, while the rate quadruples. This means that A is a 2 order. ­ To determine B we may do the same with experiments 2 and 3. In this we see that B doubles, but the rate does not change. This means that B is zero order, for if the rate does not change while the concentration does then it is zero order. ­ Therefore, the total order of this reaction is 2, and the equation is rate = K [A]^2.  Once one has solved

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Chapter 11, Problem 30 is Solved
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Textbook: Chemistry
Edition: 8
Author: Steven S. Zumdahl
ISBN: 9780547125329

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An aqueous antifreeze solution is 40.0% ethylene glycol