General Chemistry: Principles and Modern Applications (11th Edition)
11th Edition
ISBN: 9780132931281
Author: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura, Carey Bissonnette
Publisher: PEARSON
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Chapter 3, Problem 113FP
A hydrate of copper(II) sulfate, when heated, goes through the succession of changes suggested by the photograph. In this photograph. (a) is the original fully hydrated copper(II) sulfate: (b) is the product obtained by heating the original hydrate to 140 °C; (c) is the product obtained by further heating to 400 °C; and (d) is the product obtained at 1000 °C.
A 2.574 g sample of
a. Assuming that all the water of hydration is driven off at 400 °C, what is the formula of the original hydrate?
b. What is the formula of the hydrate obtained when the original hydrate is heated to only 140 °C?
c. The black residue obtained at 1000 °C is an oxide of copper. What is its percent composition and empirical formula?
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Chapter 3 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY