Chemistry: Atoms First
18th Edition
ISBN: 9781938168154
Author: Richard Langley, Klaus Theopold, Paul Flowers
Publisher: OpenStax College
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Chapter 5, Problem 30E
Sketch the distribution of electron density in the bonding and antibonding molecular orbitals formed form two s orbitals and from two p orbitals.
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eks.com/aleksogi/x/sl.exe/1o_u-IgNslkr7j8P3jH-IQs_pBanHhvTCeeBZbufuBYTI0Hz7m7D3ZS17Hd6m-HIl6n52njJN-TXdQA2X9yID-1SWQJTgnjARg30
111
States of Matter
Understanding conceptual components of the enthalpy of solution
0/5
Ge
A small amount of acetonitrile (CH, CN) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These
sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.)
CH,CN
H₂O
B
88
C
Use these sketches to answer the questions in the table below.
The enthalpy of solution AH is negative
soln
when CH3CN dissolves in water. Use this
information to list the stages in order of increasing
enthalpy.
Would heat be absorbed or released if the system
moved from Stage C to D?
What force would oppose or favor the system
moving from Stage C to D? Check all that apply.
1
absorbed
O released
neither absorbed nor released.
none
O ionic bonding force
covalent bonding force…
In a system with an anodic overpotential, the variation of ŋ as a function of
the current density:
1. at low fields is linear 2. at higher fields, it follows Tafel's law
Find the range of current densities for which the overpotential has the same
value as when calculated for cases 1 and 2 (maximum relative difference of
5% with respect to the behavior for higher fields). To which overpotential
range does this correspond?
Data: 10 = 1.5 mA cm², T = 300°C, ẞ = 0.64, R = 8.314 J K 1 mol¹ and F = 96485
C mol-1.
Indicate 10.6 with only one significant figure.
Chapter 5 Solutions
Chemistry: Atoms First
Ch. 5 - Explain how σ and bonds are similar and how they...Ch. 5 - Use valence bond theory to explain the bonding in...Ch. 5 - Use valence bond theory to explain the bonding in...Ch. 5 - How many and bonds are present in the molecule...Ch. 5 - A friend tell you N2 has three bonds due to...Ch. 5 - Draw the Lewis Structures for CO2andCO , and...Ch. 5 - Why is the concept of hybridization required in...Ch. 5 - Give the shape that describes each hybrid orbital...Ch. 5 - Explain why a carbon atom cannot from five bonds...Ch. 5 - What is the hybridization of the central atom in...
Ch. 5 - A molecule with the formula AB3 could have one of...Ch. 5 - Methionine, CH3SCH2CH2CH(NH2)CO2H, is an amino...Ch. 5 - Sulfuric acid is manufactured by a series of...Ch. 5 - Two important industrial chemicals,...Ch. 5 - Analysis of a compound indicates that it contains...Ch. 5 - Consider nitrous acid, HNO2(HONO). (a) Write a...Ch. 5 - Strike-anywhere matches contain a layer of KC1O3...Ch. 5 - Identify the hybridization of each carbon atom in...Ch. 5 - Write Lewis structures for NF3andPF5 . On the...Ch. 5 - In addition to NF3, two other fluoro derivatives...Ch. 5 - The bond energy of a C-C single bond averages...Ch. 5 - For the carbonate ion, CO32 -, draw all of the...Ch. 5 - A useful solvent that will dissolve salts as well...Ch. 5 - For the molecule allene, H2C=C=CH2, give the...Ch. 5 - Identify the hybridization of the central atom in...Ch. 5 - Describe the molecular geometry and hybridization...Ch. 5 - For each of the following molecules, indicate the...Ch. 5 - For each of the following structures, determine...Ch. 5 - Draw the orbital diagram for carbon in CO2 showing...Ch. 5 - Sketch the distribution of electron density in the...Ch. 5 - How are the following similar, and how do they...Ch. 5 - If molecular orbitals are created by combining...Ch. 5 - Can a molecule with an odd number of electrons...Ch. 5 - Can a molecule with an even number of electrons...Ch. 5 - Why are bonding molecular orbital lower in energy...Ch. 5 - Calculate the bond order for an ion with this...Ch. 5 - Explain why an electron in the bonding molecular...Ch. 5 - Predict the valence electron molecular orbital...Ch. 5 - Determine the bond order of each member of the...Ch. 5 - For the first ionizations energy for an N2...Ch. 5 - Compare the atomic and molecular orbitaI diagrams...Ch. 5 - Which of the period 2 homonuclear diatomic...Ch. 5 - A friend tells you that the 2s orbital for...Ch. 5 - True or false: Boron contains 2s22p1 valence...Ch. 5 - What charge would be needed on F2 to generate an...Ch. 5 - Predict whether the MO diagram for S2 would show...Ch. 5 - Explain why N22+ is diamagnetic, while O24+, which...Ch. 5 - Using the MO diagrams, predict the bond order for...
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