Chemistry
13th Edition
ISBN: 9781259911156
Author: Raymond Chang Dr., Jason Overby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 22, Problem 22.67QP
Hydrogen peroxide is unstable and decomposes readily:
This reaction is accelerated by light, heat, or a catalyst. (a) Explain why hydrogen peroxide sold in drugstores comes in dark bottles. (b) The concentrations of aqueous hydrogen peroxide solutions are normally expressed as percent by mass. In the decomposition of hydrogen peroxide, how many liters of oxygen gas can be produced at STP from 15.0 g of a 7.50 percent hydrogen peroxide solution?
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There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first step, copper(I) sulfide and oxygen react to form copper(I) oxide
and sulfur dioxide:
2 Cu, S(s)+3 O,(g)→2 Cu,O(s)+2 SO,(g)
In the second step, copper(I) oxide and carbon react to form copper and carbon monoxide:
Cu,O(s)+C(s)→2 Cu(s)+CO(g)
Write the net chemical equation for the production of copper from copper(I) sulfide, oxygen and carbon. Be sure your equation is balanced.
O-0
There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first step, copper(I) sulfide and oxygen react to form
copper(I) oxide and sulfur dioxide:
2 Cu, S(s)+3 O,(9)→2Cu,O(s)+2 SO,(9)
In the second step, copper(I) oxide and carbon react to form copper and carbon monoxide:
Cu,O(s)+C(s)–→2 Cu(s)+CO(g)
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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In the first step, calcium carbide and
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CaC₂(s) + 2 H₂O(g) → C₂H₂(g) + Ca(OH)₂(s)
-
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6C₂H₂(g) + 3 CO₂(g) + 4H₂O(g) → 5 CH₂CHCO₂(g)
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Round your answer to the nearest kJ.
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Chapter 22 Solutions
Chemistry
Ch. 22 - Prob. 22.1QPCh. 22 - Prob. 22.2QPCh. 22 - Prob. 22.3QPCh. 22 - Carbon is usually classified as a nonmetal....Ch. 22 - Prob. 22.5QPCh. 22 - Describe two laboratory and two industrial...Ch. 22 - Prob. 22.7QPCh. 22 - Prob. 22.8QPCh. 22 - Prob. 22.9QPCh. 22 - Describe what is meant by the hydrogen economy.
Ch. 22 - Elements number 17 and 20 form compounds with...Ch. 22 - Give an example of hydrogen as (a) an oxidizing...Ch. 22 - Prob. 22.13QPCh. 22 - Prob. 22.14QPCh. 22 - Prob. 22.15QPCh. 22 - Prob. 22.16QPCh. 22 - Prob. 22.17QPCh. 22 - Starting with H2, describe how you would prepare...Ch. 22 - Give an example of a carbide and a cyanide.Ch. 22 - How are cyanide ions used in metallurgy?Ch. 22 - Briefly discuss the preparation and properties of...Ch. 22 - Prob. 22.22QPCh. 22 - Prob. 22.23QPCh. 22 - Describe two chemical differences between CO and...Ch. 22 - Describe the reaction between CO2 and OH in terms...Ch. 22 - Prob. 22.26QPCh. 22 - Prob. 22.27QPCh. 22 - Prob. 22.28QPCh. 22 - Prob. 22.29QPCh. 22 - Magnesium chloride is dissolved in a solution...Ch. 22 - Prob. 22.31QPCh. 22 - Prob. 22.32QPCh. 22 - A piece of red-hot magnesium ribbon will continue...Ch. 22 - Prob. 22.34QPCh. 22 - Describe a laboratory and an industrial...Ch. 22 - Prob. 22.36QPCh. 22 - Prob. 22.37QPCh. 22 - Prob. 22.38QPCh. 22 - Prob. 22.39QPCh. 22 - Prob. 22.40QPCh. 22 - Prob. 22.41QPCh. 22 - Write a balanced equation for the formation of...Ch. 22 - Prob. 22.43QPCh. 22 - At 620 K the vapor density of ammonium chloride...Ch. 22 - Prob. 22.45QPCh. 22 - Prob. 22.46QPCh. 22 - Write a balanced equation for each of the...Ch. 22 - Prob. 22.48QPCh. 22 - Prob. 22.49QPCh. 22 - Predict the geometry of nitrous oxide, N2O, by the...Ch. 22 - Consider the reaction N2(g)+O2(g)2NO(g) Given that...Ch. 22 - From the data in Appendix 2, calculate H for the...Ch. 22 - Prob. 22.53QPCh. 22 - Prob. 22.54QPCh. 22 - Prob. 22.55QPCh. 22 - Prob. 22.56QPCh. 22 - Prob. 22.57QPCh. 22 - Prob. 22.58QPCh. 22 - Describe one industrial and one laboratory...Ch. 22 - Prob. 22.60QPCh. 22 - Prob. 22.61QPCh. 22 - Prob. 22.62QPCh. 22 - Describe the contact process for the production of...Ch. 22 - Prob. 22.64QPCh. 22 - Prob. 22.65QPCh. 22 - One of the steps involved in the depletion of...Ch. 22 - Hydrogen peroxide is unstable and decomposes...Ch. 22 - What are the oxidation numbers of O and F in HFO?Ch. 22 - Prob. 22.69QPCh. 22 - In 2008, about 48 million tons of sulfuric acid...Ch. 22 - Prob. 22.71QPCh. 22 - Prob. 22.72QPCh. 22 - Prob. 22.73QPCh. 22 - Prob. 22.74QPCh. 22 - Prob. 22.75QPCh. 22 - Prob. 22.76QPCh. 22 - Describe two reactions in which sulfuric acid acts...Ch. 22 - Prob. 22.78QPCh. 22 - Prob. 22.79QPCh. 22 - Prob. 22.80QPCh. 22 - Prob. 22.81QPCh. 22 - Prob. 22.82QPCh. 22 - Prob. 22.83QPCh. 22 - Prob. 22.84QPCh. 22 - Prob. 22.85QPCh. 22 - Hydrogen fluoride can be prepared by the action of...Ch. 22 - Prob. 22.87QPCh. 22 - Prob. 22.88QPCh. 22 - Use the VSEPR method to predict the geometries of...Ch. 22 - Iodine pentoxide, I2O5, is sometimes used to...Ch. 22 - Prob. 22.91QPCh. 22 - Prob. 22.92QPCh. 22 - Prob. 22.93QPCh. 22 - What is the change in oxidation number for the...Ch. 22 - Prob. 22.95QPCh. 22 - Prob. 22.96QPCh. 22 - Prob. 22.97QPCh. 22 - Consider the Frasch process. (a) How is it...Ch. 22 - Predict the physical and chemical properties of...Ch. 22 - Prob. 22.100QPCh. 22 - Prob. 22.101QPCh. 22 - Life evolves to adapt to its environment. In this...Ch. 22 - Prob. 22.103QPCh. 22 - As we saw in Section 21.2, the reduction of iron...Ch. 22 - Assuming ideal behavior, calculate the density of...Ch. 22 - A 10.0-g sample of white phosphorus was burned in...
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