Chemistry
9th Edition
ISBN: 9781133611097
Author: Steven S. Zumdahl
Publisher: Cengage Learning
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Chapter 8, Problem 20Q
Give one example of a compound having a linear molecular structure that has an overall dipole moment (is polar) and one example that does not have an overall dipole moment (is non-polar). Do the same for molecules that have trigonal planar and tetrahedral molecular structures.
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A resonance hybrid is a structure that can be depicted by more than one valid Lewis structure.
part1: Draw the major resonance form of fulminic acid, HCNO, with the atoms connected as indicated in the formula. Your structure should have nonzero formal charges minimized, and it should include all nonzero formal charges and all nonbonding electrons.
part2: Draw the second most important resonance form of fulminic acid, HCNO, with the atoms connected as indicated in the formula. Your structure should have nonzero formal charges minimized, and it should include all nonzero formal charges and all nonbonding electrons.
part3: Draw the least important resonance contributor for fulminic acid, HCNO, with the atoms connected as indicated in the formula. Your structure should have nonzero formal charges minimized and should include all nonzero formal charges and all nonbonding electrons.
What is the nature of the bonding in C2H2Cl2 , Is it polar?
In order to answer this we must know about dipole moments. Dipole moments need knowledge of geometry and polarity Polarity comes from periodic properties like electronegativity Geometry comes from lewis structures and understanding the nature of electrons.
As a general rule, MXn molecules (where M represents a central atom and X represents terminal atoms; n = 2 – 5) are polar if there is one or more lone pairs of electrons on M. NH3 (M = N, X = H, n = 3) is an example. There aretwo molecular structures with lone pairs that are exceptions to this rule. What are they?
Chapter 8 Solutions
Chemistry
Ch. 8 - Distinguish between the terms electronegativity...Ch. 8 - When an element forms an anion, what happens to...Ch. 8 - Define the term lattice energy. Why,...Ch. 8 - Explain how bond energies can be used to estimate...Ch. 8 - Prob. 5RQCh. 8 - Explain the terms resonance and delocalized...Ch. 8 - Define formal charge and explain how to calculate...Ch. 8 - Give two requirements that should be satisfied for...Ch. 8 - Consider the following compounds: CO2, SO2, KrF2,...Ch. 8 - Explain the electronegativity trends across a row...
Ch. 8 - The ionic compound AB is formed. The charges on...Ch. 8 - Prob. 3ALQCh. 8 - The bond energy for a CH bond is about 413 kJ/mol...Ch. 8 - Prob. 5ALQCh. 8 - Which has the greater bond lengths: NO2 or NO3?...Ch. 8 - The following ions are best described with...Ch. 8 - The second electron affinity values for both...Ch. 8 - What is meant by a chemical bond? Why do atoms...Ch. 8 - Why are some bonds ionic and some covalent?Ch. 8 - How does a bond between Na and Cl differ from a...Ch. 8 - Arrange the following molecules from most to least...Ch. 8 - Does a Lewis structure tell which electron come...Ch. 8 - Describe the type of bonding that exists in die...Ch. 8 - Some plant fertilizer compounds are (NH4)2SO4,...Ch. 8 - Some of the important properties of ionic...Ch. 8 - What is the electronegativity trend? 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Show all...Ch. 8 - Prob. 90ECh. 8 - Benzene (C6H6) consists of a six-membered ring of...Ch. 8 - Borazine (B3N3H6) has often been called inorganic...Ch. 8 - An important observation supporting the concept of...Ch. 8 - Consider the following bond lengths: CO143pmC9O123...Ch. 8 - A toxic cloud covered Bhopal, India, in December...Ch. 8 - Peroxyacetyl nitrate, or PAN, is present in...Ch. 8 - Prob. 99ECh. 8 - Use formal charge arguments to explain why CO has...Ch. 8 - Write Lewis structures that obey the octet rule...Ch. 8 - Write Lewis structures for the species in Exercise...Ch. 8 - Oxidation of the cyanide ion produces the stable...Ch. 8 - When molten sulfur reacts with chlorine gas, a...Ch. 8 - Prob. 106ECh. 8 - Prob. 108ECh. 8 - Predict the molecular structure and bond angles...Ch. 8 - Predict die molecular structure and bond angles...Ch. 8 - There are several molecular structures based on...Ch. 8 - Two variations of the octahedral geometry (see...Ch. 8 - Predict the molecular structure (including bond...Ch. 8 - Predict the molecular structure (including bond...Ch. 8 - Predict the molecular structure (including bond...Ch. 8 - Predict the molecular structure (including bond...Ch. 8 - Prob. 117ECh. 8 - Which of the molecules in Exercise 120 have net...Ch. 8 - Which of the molecules in Exercise 121 have net...Ch. 8 - Which of the molecules in Exercise 122 have net...Ch. 8 - Write Lewis structures and predict the molecular...Ch. 8 - Write Lewis structures and predict whether each of...Ch. 8 - Consider the following Lewis structure where E is...Ch. 8 - Consider the following Lewis structure where E is...Ch. 8 - Prob. 125ECh. 8 - Two different compounds have the formula XeF2Cl2....Ch. 8 - Arrange the following in order of increasing...Ch. 8 - For each of the following, write an equation that...Ch. 8 - Use bond energies (table 3-3), values of electron...Ch. 8 - Write Lewis structures for CO32, HCO3, and H2CO3....Ch. 8 - Which member of the following pairs would you...Ch. 8 - What do each of the following sets of...Ch. 8 - Prob. 133AECh. 8 - Although both Br3 and I3 ions are known, the F3...Ch. 8 - Which of the following molecules have not dipole...Ch. 8 - Prob. 137AECh. 8 - Look up the energies for the bonds in CO and N2....Ch. 8 - Classify the bonding in each of the following...Ch. 8 - List the bonds PCl, PF, OF, and SiF from least...Ch. 8 - Arrange the atoms and/or ions in the following...Ch. 8 - Use the following data to estimate E for the...Ch. 8 - Use bond energy values to estimate E for the...Ch. 8 - Which of the following compounds or ions exhibit...Ch. 8 - The formulas of several chemical substances are...Ch. 8 - Predict the molecular structure, bond angles, and...Ch. 8 - Use Coulombs Jaw, V=Q1Q240r=2.311019Jnm(Q1Q2r) to...Ch. 8 - Prob. 148CPCh. 8 - Calculate the standard heat of formation of the...Ch. 8 - Given the following information: Energy of...Ch. 8 - Prob. 151CPCh. 8 - Think of forming an ionic compound as three steps...Ch. 8 - The compound NF3 is quite stable, but NCl3, is...Ch. 8 - Three processes that have been used for the...Ch. 8 - The compound hexaazaisowurtzitane is one of the...Ch. 8 - Many times extra stability is characteristic of a...Ch. 8 - The study of carbon-containing compounds and their...Ch. 8 - Draw a Lewis structure for the N,...Ch. 8 - Prob. 159CPCh. 8 - Consider the following computer-generated model of...Ch. 8 - A compound, XF5, is 42.81% fluorine by mass....Ch. 8 - Identify the following elements based on their...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- - Complete the table. Number of electron groups Bond angle Outer atoms/Lone pairs 2 ? 2/0 3 4 ? ? bond angle in a two electron group molecule: bond angle in a three electron group molecule: bond angle in a four electron group molecule: 3/0 2/1 4/0 3/1 2/2 Shape ? trigonal planar (planar triangular) ? tetrahedral ? bent The shape of a two electron group molecule is The shape of a three electron group molecule with two outer atoms and one lone pair is The shape of a four electron group molecule with three outer atoms and one lone pair isarrow_forwardConsider the molecules BF₃, PF₃, BrF₃, SF₄, and SF₆.(a) Which has bonds that are the most polar?(b) Which have a molecular dipole moment?arrow_forward2. The following are the two possible Lewis structures for C₂H₂F₂. Will both of them have the same dipole moment? Explain clearly. F H C=C H F F C=C Iarrow_forward
- Predict whether each of the following molecules has a dipole moment: (a) BrCl, (b) BF3, (c) CH2Cl2.arrow_forwardExplain percent ionic character of a bond. Percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole O moment it would have if the electron were completely transferred from one atom to the other, multiplied by 1000. Percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole O moment it would have if the electron were completely transferred from one atom to the other, divided by 100. Percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole O moment it would have if the electron were completely shared between two atoms, multiplied by 100. Percent ionic character is defined as the ratio of a bond's actual dipole moment to the dipole O moment it would have if the electron were completely transferred from one atom to the other, multiplied by 100. Submit Request Answerarrow_forwardShould 100% sure of answer. Draw the Lewis structure of HBrO₃ (by following the octet rule on all atoms) and then choose the appropriate pair of molecular geometries of the two central atoms. Your answer choice is independent of the orientation of your drawn structure.arrow_forward
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- 1) Why is it important to understand the molecular geometry or shape of molecules and ions in chemistry? H2Se CCl4 CH2Cl2 HCN NH3Cl+ NH2- CH3COCH3 CH3COOH 2) Among the eight molecules and ions studied in this experiment, (a) which molecule(s) or ion(s) are polar, and which ones are non-polar? (b) What is the difference between polar and non-polar molecules or ions? (c) What two factors dictate the polarity of the molecule or ion?arrow_forward0=c=0; Lewis electron-dot diagrams for CO2 and SO2 are given above. The molecular geometry and polarity of the two substances are the same because the molecular formulas are similar the same because C and S have similar electronegativity values different because the lone pair of electrons on the S atom make it the negative end of a dipole D different because S has a greater number of electron domains (regions of electron density) surrounding it than C hasarrow_forwardPredicting the arrangement of electron groups around the central atom of a molecule.arrow_forward
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