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Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 51E
Which should be more difficult to pull apart: a sodium ion from a chloride ion or a potassium ion from a chloride ion? Please explain.
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A 250 mL aqueous solution contains 2.37 g of copper(II) chloride. The dissolved copper(II) chloride is dissociated into copper(II) and chloride ions. Each copper(II) ion has two less electrons than protons. A scientist wishes to use an electroplating process to reduce the 1.12 g of copper ions to solid copper atoms. To be reduced from the ion form to the atom form, a copper(II) ion must gain two electrons. Each gram of copper(II) ions contains 9.48 x 1021 ions. Determine the total quantity of charge that must be supplied to turn the copper(II) ions into solid copper atpms
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Consider the given half-reactions that occur at
the cathode and anode in an electrolysis
reaction at T=298 K.T=298 K.
cathode:Al3+(aq, 0.20 M)+3e---
-- Al(s)cathode:Al3+(aq, 0.20 M)+3e---
- - Al(s)
anode:Au(s)----
3+,
Au3+(aq, 0.17М)+Зе-
Al(s)
Al3*(aq) + 3e-
Au3*(aq)
-1.677
+ Зе
Au(s)
+1.498
Consider the given half-reactions that occur at the cathode and anode in an electrolysis reaction at T = 298 K.
cathode: Al3+(aq, 0.20 M) + 3e¯ Al(s)
anode: Au(s) Au³+(aq, 0.17 M) + 3 e-
Standard reduction potentials can be found in the table of standard reduction potentials.
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Ecell =
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Echmic =
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Eapplied =
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If concentration…
Chapter 15 Solutions
Conceptual Physical Science (6th Edition)
Ch. 15 - How many electrons can occupy the first shell? How...Ch. 15 - Which electrons are represented by an electron-dot...Ch. 15 - Prob. 3RCQCh. 15 - How does an ion differ from an atom?Ch. 15 - To become a negative ion, does an atom lose or...Ch. 15 - Why does the fluorine atom tend to gain only one...Ch. 15 - Prob. 7RCQCh. 15 - Suppose an oxygen atom gains two electrons to...Ch. 15 - Prob. 9RCQCh. 15 - Do metals more readily gain or lose electrons?
Ch. 15 - What is an alloy?Ch. 15 - What is a native metal?Ch. 15 - Prob. 13RCQCh. 15 - Prob. 14RCQCh. 15 - Within a neutral molecule, how many covalent bonds...Ch. 15 - Prob. 16RCQCh. 15 - Prob. 17RCQCh. 15 - Prob. 18RCQCh. 15 - Prob. 19RCQCh. 15 - How can a molecule be nonpolar when it consists of...Ch. 15 - Why do nonpolar substances boil at relatively low...Ch. 15 - Which is more symmetrical: a polar molecule or a...Ch. 15 - Why dont oil and water mix?Ch. 15 - Prob. 24RCQCh. 15 - Which is stronger: the ion-dipole attraction or...Ch. 15 - What is a hydrogen bond?Ch. 15 - Are induced dipoles permanent?Ch. 15 - Prob. 31TASCh. 15 - What is the electric charge on the calcium ion in...Ch. 15 - Prob. 33TASCh. 15 - Prob. 34TASCh. 15 - Rank these bonds in order of increasing polarity:...Ch. 15 - Prob. 36TARCh. 15 - Prob. 37TARCh. 15 - Prob. 38TARCh. 15 - Prob. 39ECh. 15 - Prob. 40ECh. 15 - How many more electrons can fit within the valence...Ch. 15 - Prob. 42ECh. 15 - What happens when hydrogens electron gets close to...Ch. 15 - Prob. 44ECh. 15 - Why does an atom with few valence electrons tend...Ch. 15 - Why is it so easy for a magnesium atom to lose two...Ch. 15 - Why doesnt the neon atom tend to lose or gain any...Ch. 15 - Why does an atom with many valence electrons tend...Ch. 15 - Sulfuric acid, H2SO4, loses two protons to form...Ch. 15 - Prob. 50ECh. 15 - Which should be more difficult to pull apart: a...Ch. 15 - Prob. 52ECh. 15 - Given that the total number of atoms on our planet...Ch. 15 - An artist wants to create a metal sculpture using...Ch. 15 - Two fluorine atoms join together to form a...Ch. 15 - How are metallic bonds similar to ionic bonds? How...Ch. 15 - What drives an atom to form a covalent bond: its...Ch. 15 - Atoms of nonmetallic elements form covalent bonds,...Ch. 15 - Prob. 59ECh. 15 - Prob. 60ECh. 15 - Write the electron-dot structure for the covalent...Ch. 15 - Prob. 62ECh. 15 - In each molecule, which atom carries the greater...Ch. 15 - Which is more polar: a sulfur-bromine (S-Br) bond...Ch. 15 - True or False: The greater the nuclear charge of...Ch. 15 - True or False: The more shells in an atom, the...Ch. 15 - Water, H2O, and methane, CH4, have about the same...Ch. 15 - In the figure on the next page, the molecule from...Ch. 15 - Prob. 69ECh. 15 - Three kids sitting equally apart around a table...Ch. 15 - Which is stronger: the covalent bond that holds...Ch. 15 - The charges with sodium chloride are all...Ch. 15 - Prob. 73ECh. 15 - Prob. 74ECh. 15 - Prob. 75ECh. 15 - A thin stream of water is pulled to a rubber...Ch. 15 - Prob. 77ECh. 15 - Prob. 1RATCh. 15 - Prob. 2RATCh. 15 - Which would you expect to have a higher melting...Ch. 15 - Why are ores so valuable? (a) They are sources of...Ch. 15 - In terms of the periodic table, is there an abrupt...Ch. 15 - A hydrogen atom does not form more than one...Ch. 15 - When nitrogen and fluorine combine to form a...Ch. 15 - Prob. 8RATCh. 15 - Prob. 9RATCh. 15 - Iodine, I2, has a higher melting point than...
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