Chapter 12 Section 1
|
|
|
- Lauren Cain
- 5 years ago
- Views:
Transcription
1 hapter 12 Section 1 Kinetic Molecular Description of Liquids and Solids Noncovalent Forces Intermolecular interactions Electrostatic Forces Dispersion Forces -bonding DNA, RNA Mary J. Bojan hem 110 1
2 What s next? We now know about the structure of molecules. Lewis structures à shape, bonding information (hybrid orbitals) Organic molecules serve as examples Next: what are the PROPERTIES of these molecules? Properties of gases, liquids, and solutions (properties of solids in hem 112) We will always be connecting the properties to their structure! Mary J. Bojan hem 110 2
3 To understand properties, we want to connect what we see to what is happening on a molecular level. Start with states of matter Kinetic Molecular Theory is used to explain what is happening on a molecular level. Key postulate of this theory is that molecules have kinetic energy: they are in constant motion in all states. Mary J. Bojan hem 110 3
4 The state a substance is in at a particular temperature and pressure depends on two antagonistic entities: The kinetic energy of the particles The strength of the attractions between the particles gas à liquid à solid. Mary J. Bojan hem 110 4
5 If we know the relative strengths of these two interactions we could predict the state of a substance. gas: Kinetic energy >> intermolecular forces Liquid: Kinetic energy intermolecular forces Solid: Kinetic energy << intermolecular forces solid liquid gas! Kinetic Energy T eating: T é, KE é Mary J. Bojan hem 110 5
6 Intermolecular forces (non covalent interactions) are weaker than covalent bonds Strength of: chemical bonds intermolecular (IM) forces intermolecular attraction (weak) intramolecular Bond (strong) Relative strengths of intermolecular forces can be seen experimentally: higher boiling point (or melting point) È intermolecular interactions IM FORES: due to electrostatic attraction increase as intermolecular distances Mary J. Bojan hem 110 6
7 To predict the relative strength of InterMolecular (IM) Forces, start by understanding how IM Forces are connected to molecular properties (and structure). Strength of IM forces depends on: Q charge on ion µ dipole moment α Polarizability α - polarizability: ease with which electron clouds become distorted α increases as number of electrons increases α increases as size (MW) increases Mary J. Bojan hem 110 7
8 SUMMARY of TYPES OF INTERMOLEULAR FORES Ion-Ion ionic bond Depends on Q Depends on Dipole-Induced Dipole µ, α polar molecules in nonpolar solvents Ion-Dipole Q, µ Ions in aqueous solutions of electrolytes Dipole-Dipole µ Ion-Induced Dipole ions in nonpolar solvents Q, α Dispersion α induced-dipole induced-dipole ydrogen Bonding must have bonded to N,O,F directional dipole-dipole In general: IM Forces are due to ELETROSTATI attraction. Mary J. Bojan hem 110 8
9 Ion-Ion: IM Forces are due to ELETROSTATI attraction depends on ion charge Q and distance r Q + r Q Q1Q r 2 E! Q = charge r = distance between charges Opposite charges STRONG interaction alled: Mary J. Bojan hem 110 9
10 IM Forces are due to ELETROSTATI attraction Ion-Dipole Depends on ion charge Q, dipole moment, µ and r E! Qµ r 2 Example: salt dissolved in water. Ions: Na + and l Polar solvent; water Mary J. Bojan hem
11 IM Forces are due to ELETROSTATI ELETROSTATI attraction FORES Dipole-Dipole depends on µ and r! +!"! +!" E! µ µ r 1 2 3!"! +! +!" attraction repulsion Net effect averaged over time. l l l l l Example: Mary J. Bojan hem
12 DISPERSION FORES are the result of induced dipole interactions Ion Induced Dipole: depends on Q of ion, α and r Ease of electronic distortion is polarizability: α + +!"!+ Ion neutral molecule Induce dipole Mary J. Bojan hem
13 DISPERSION FORES are the result of induced dipole interactions Induced Dipole: depends on α and r London Dispersion forces = Induced dipoles - induced dipoles forces E "!! 1 r 6 2 Mary J. Bojan hem
14 London Dispersion Forces SUMMARY electrons are in constant motion instantaneous dipole moment forms when there are more electrons on one side of the molecule instantaneous dipole moment induces an instantaneous dipole moment in a neighboring molecule TEY MOVE IN SYN Mary J. Bojan hem
15 Dispersion interactions contribute to the intermolecular forces in ALL molecules. Ar interacts via LDF only Ar Ar l l l has LDF in addition to dipole dipole Mary J. Bojan hem
16 Dispersion Interactions depend on size, shape and polarizability SIZE: Ar BP = Xe BP = Size (number of electrons) is related to polarizability Mary J. Bojan hem
17 YDROARBONS 17 ALKANES ALKENES ALKYNES AROMATI 3 Mary J. Bojan hem 110 Dispersion Interactions depend on size, shape and polarizability
18 Dispersion Interactions depend on size, shape and polarizability Boiling Points of Alkanes Alkanes: hydrocarbons non polar LDF only Boiling Point Number of arbons As size of hydrocarbon increases boiling point (and melting point) increase. Mary J. Bojan hem
19 Dispersion Interactions depend on SAPE N-pentane BP = 36.2 isopentane BP = 28 Neopentane BP = 9.5 Mary J. Bojan hem
20 Boiling points increase as dispersion forces increase (mainly MW). We see this trend by plotting the boiling points of the molecular hydrides. Mary J. Bojan hem
21 ydrogen Bonding: IM force BUT directional like covalent bonds. The dipole-dipole interactions experienced when is bonded to N, O, or F (the most electronegative elements) are unusually strong. When hydrogen is bonded to N, O, F the hydrogen nucleus is exposed. Mary J. Bojan hem
22 bonds are: ydrogen Bonding ü strong as intermolecular forces go: ~ 4-25kJ/mole ü weak compared to covalent bonds, but are directional like covalent bonds. Water is especially interesting Mary J. Bojan hem
23 ow do you know which has the strongest Intermolecular (IM) forces? compare boiling point (BP) and melting (MP) higher BP (MP) means stronger IM forces If substances are similar, follow trends. Eg. inert gases, shape is the same IM forces increase as MW increases (as polarizability increases) If trends compete, need BP or MP Eg. 3 l 24.2 µ increases é 3 Br 3.6 size increases ê 3 I 42.4 (polarizability) BP follows trend in size: London Dispersion forces dominate here Mary J. Bojan hem
24 Q + Q r intermolecular Attraction (weak) intramolecular Bond (strong) Mary J. Bojan hem
25 Mary J. Bojan hem
26 l l l l l Mary J. Bojan hem
Solutions and Intermolecular Forces
Solutions and Intermolecular Forces REVIEW Chemical Bonds Three basic types of bonds: Ionic Electrostatic attraction between ions Covalent Sharing of electrons Metallic Metal atoms bonded to several other
States of Matter. Intermolecular Forces. The States of Matter. Intermolecular Forces. Intermolecular Forces
Intermolecular Forces Have studied INTRAmolecular forces the forces holding atoms together to form compounds. Now turn to forces between molecules INTERmolecular forces. Forces between molecules, between
Lecture Presentation. Chapter 11. Liquids and Intermolecular Forces. John D. Bookstaver St. Charles Community College Cottleville, MO
Lecture Presentation Chapter 11 Liquids and Intermolecular Forces John D. Bookstaver St. Charles Community College Cottleville, MO Properties of Gases, Liquids, and Solids State Volume Shape of State Density
Name: Date: Period: #: BONDING & INTERMOLECULAR FORCES
BONDING & INTERMOLECULAR FORCES Page 1 INTERMOLECULAR FORCES Intermolecular forces (van der Waals forces) relative weak interactions that occur between molecules. Most of the physical properties of gases,
Chap 10 Part 4Ta.notebook December 08, 2017
Chapter 10 Section 1 Intermolecular Forces the forces between molecules or between ions and molecules in the liquid or solid state Stronger Intermolecular forces cause higher melting points and boiling
Quick Review. 1. Hybridization. 2. Delocalization. 3. We will not be talking about Molecular Orbital Model.
Quick Review 1. ybridization. 2. Delocalization. 3. We will not be talking about Molecular Orbital Model. **OUR EXAM II IS TURSDAY April 2 nd at 7pm** *BQ5, BQ6 and BQM are in 66 Library *BQ1, BQ2, BQ3,
Kinetic Molecular Theory of Gases used to account for Ideal Gas Behavior when gases approach high temperatures and low pressures
LIQUIDS AND SOLIDS Kinetic Molecular Theory of Gases used to account for Ideal Gas Behavior when gases approach high temperatures and low pressures GASES are very different from solids and liquids. We
Liquids and Solids The Condensed States of Matter
Liquids and Solids The Condensed States of Matter AP Chemistry Ms. Grobsky Where We Have Been And Where We Are Going In the last few chapters, we saw that atoms can form stable units called molecules by
Lecture Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten
Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten Lecture 1101 John D. Bookstaver St. Charles Community College Cottleville, MO Molecular Comparison
Intermolecular Forces
Intermolecular Forces 5/14/12 Do now: find a piece of metal at your table and describe three properties about it Work on bonding types Homework: work on pg 209 1-7 Due Wednesday Blazertime: finish organic
liquids_solids_15dec2017_1st.notebook Liquids and solids Chapters 11 and 12
liquids_solids_15dec2017_1st.notebook December 15, 2017 Liquids and solids Chapters 11 and 12 Intermolecular forces Intermolecular: forces between molecules Intramolecular: within molecules (i.e. covalent)
Chapter 12. Intermolecular Forces: Liquids, Solids, and Phase Changes
Chapter 12 Intermolecular Forces: Liquids, Solids, and Phase Changes There are attractive intermolecular in all solids, liquids (called condensed phases) and gases. Molecules are held together by attractive
Chapter 11 Intermolecular Forces, Liquids, and Solids. Intermolecular Forces
Chapter 11, Liquids, and Solids States of Matter The fundamental difference between states of matter is the distance between particles. States of Matter Because in the solid and liquid states particles
[8.5] Melting Points and Boiling Points of Solutions
![[8.5] Melting Points and Boiling Points of Solutions](/thumbs/90/103687645.jpg "[8.5] Melting Points and Boiling Points of Solutions")
[8.5] Melting Points and Boiling Points of Solutions Melting and Boiling Points We have talked about melting and boiling points earlier in the semester Now we are going to understand how intermolecular
Intermolecular Forces
Intermolecular Forces Molecular Compounds The simplest molecule is H 2 : Increased electron density draws nuclei together The pair of shared electrons constitutes a covalent bond. Intermolecular Forces
The kinetic Molecular Theory of Liquids and solids
The kinetic Molecular Theory of Liquids and solids States of Matter The fundamental difference between states of matter is the distance between particles. 2012 Pearson Education, Inc. Intermolecular Forces
Chapter 11 Intermolecular Forces, Liquids, and Solids
Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten Chapter 11, Liquids, and Solids States of Matter The fundamental difference between states of
Chapter 11 Intermolecular Forces, Liquids, and Solids
Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten Chapter 11, Liquids, and Solids John D. Bookstaver St. Charles Community College Cottleville,
Intermolecular Forces, Liquids, & Solids
, Liquids, & Solids Mr. Matthew Totaro Legacy High School AP Chemistry States of Matter The fundamental difference between states of matter is the distance between particles. States of Matter Because in
Physical States of Matter
Intermolecular forces Chapter 5 Physical States of Matter Section 12.3 Physical States of Matter Three phases of matter solid Definite shape and volume solid liquid liquid Definite volume, shape of container
Intermolecular Forces I
I How does the arrangement of atoms differ in the 3 phases of matter (solid, liquid, gas)? Why doesn t ice just evaporate into a gas? Why does liquid water exist at all? There must be some force between
S T A T I O N 1 B O N D T Y P E S
Pasadena onors Chemistry Name 10 Bonding Period Date State the type of bond that will form from each pair of elements: Type S T A T I O N 1 B O N D T Y P E S Mg Ionic Bond S O Polar Covalent Bond Ag Cu
When intermolecular forces are strong, the atoms, molecules, or ions are strongly attracted to each other, and draw closer together.
INTERMOLECULAR FORCES: THE FORCE BEHIND VARIOUS PROPERTIES WHY? Intermolecular forces are largely responsible for the properties of affinity, solubility, volatility, melting/ boiling point, and viscosity.
Chapter 11 Intermolecular Forces, Liquids, and Solids
Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten Chapter 11 Intermolecular Forces, Liquids, and Solids John D. Bookstaver St. Charles Community
Intermolecular Forces and Phase Equilibria
Intermolecular Forces and Phase Equilibria Chemistry 36 Spring 2002 Intermolecular Forces What happens to gas phase molecules when subjected to increased pressure? Volume occupied by gas decreases (IGL)
CHEMISTRY. Chapter 11 Intermolecular Forces Liquids and Solids
CHEMISTRY The Central Science 8 th Edition Chapter 11 Liquids and Solids Kozet YAPSAKLI States of Matter difference between states of matter is the distance between particles. In the solid and liquid states
Chapter 11 Intermolecular Forces, Liquids, and Solids
Surveying the Chapter: Page 442 Chapter 11 Intermolecular Forces, Liquids, and Solids We begin with a brief comparison of solids, liquids, and gases from a molecular perspective, which reveals the important
One Q partial negative, the other partial negative Ø H- bonding particularly strong. Abby Carroll 2
Chemistry Notes v Polarity Experiment Ø Things involved Polarity Solubility Dispersion Ø Polarity Shaving cream has soap steric acid Water is polar Food coloring is polar/ionic because dissolved Like dissolves
Intermolecular Forces and Physical Properties
Intermolecular Forces and Physical Properties Attractive Forces Particles are attracted to each other by electrostatic forces. The strength of the attractive forces depends on the kind(s) of particles.
London Dispersion Forces (LDFs) Intermolecular Forces Attractions BETWEEN molecules. London Dispersion Forces (LDFs) London Dispersion Forces (LDFs)
LIQUIDS / SOLIDS / IMFs Intermolecular Forces (IMFs) Attractions BETWEEN molecules NOT within molecules NOT true bonds weaker attractions Represented by dashed lines Physical properties (melting points,
Ch. 9 Liquids and Solids
Intermolecular Forces I. A note about gases, liquids and gases. A. Gases: very disordered, particles move fast and are far apart. B. Liquid: disordered, particles are close together but can still move.
Intermolecular Forces of Attraction
Name Unit Title: Covalent Bonding and Nomenclature Text Reference: Pages 189-193 Date Intermolecular Forces of Attraction Intramolecular vs. Intermolecular So far in our discussion of covalent bonding,
DIFFERENT TYPES OF INTEMOLECULAR FORCES INTERMOLECULAR FORCES
DIFFERENT TYPES OF INTEMOLECULAR FORCES Do all the exercises in your studyguide COMPARISON OF THE THREE PHASES OF MATTER. Matter is anything that occupy space and has mass. There are three states of matter:
Chapter 10 Liquids, Solids, and Intermolecular Forces
Chapter 10 Liquids, Solids, and Intermolecular Forces The Three Phases of Matter (A Macroscopic Comparison) State of Matter Shape and volume Compressibility Ability to Flow Solid Retains its own shape
Chapter 12 Intermolecular Forces and Liquids
Chapter 12 Intermolecular Forces and Liquids Jeffrey Mack California State University, Sacramento Why? Why is water usually a liquid and not a gas? Why does liquid water boil at such a high temperature
Comparing Ionic and Covalent Compounds
Comparing Ionic and Covalent Compounds It takes energy to overcome the forces holding particles together. Thus, it takes energy to cause a substance to go from the liquid to the gaseous state. The boiling
Unit 4:Chemical Bonding Practice Packet
Name: KEY Unit 4:Chemical Bonding Practice Packet 1. I can state the three types of chemical bonds. 2. I can state the number of valence electrons that an atom attains to be most stable. 3. I can state
Intermolecular Force of Attraction
Note Packet # 11 Intermolecular Force of Attraction I Love Chemistry An intermolecular force of attraction is a force of attraction between molecules. Remember! Molecules are groups of atoms that are covalently
Unit 6: Molecular Geometry
Unit 6: Molecular Geometry Molecular Geometry [6-5] the polarity of each bond, along with the geometry of the molecule determines Molecular Polarity. To predict the geometries of more complicated molecules,
Lecture Presentation. Chapter 11. Liquids and Intermolecular Forces Pearson Education, Inc.
Lecture Presentation Chapter 11 Liquids and States of Matter The fundamental difference between states of matter is the strength of the intermolecular forces of attraction. Stronger forces bring molecules
Chemistry: The Central Science
Chemistry: The Central Science Fourteenth Edition Chapter 11 Liquids and Intermolecular Forces Intermolecular Forces The attractions between molecules are not nearly as strong as the intramolecular attractions
Intermolecular Forces
Intermolecular Forces H covalent bond (stronger) Cl H Cl intermolecular attraction (weaker) The attractions between molecules are not nearly as strong as the covalent bonds that hold atoms together. They
Intermolecular forces Liquids and Solids
Intermolecular forces Liquids and Solids Chapter objectives Understand the three intermolecular forces in pure liquid in relation to molecular structure/polarity Understand the physical properties of liquids
Unit 9: CHEMICAL BONDING
Unit 9: CEMICAL BNDING Unit 9: Bonding: 1. Electronegativity 2. Intramolecular Bonding 3. Intermolecular Bonding 4. Drawing Lewis Structures 5. Lewis Structures for Polyatomic Ions 6. Exceptions to the
Chemistry: A Molecular Approach, 1 st Ed. Nivaldo Tro
hemistry: A Molecular Approach, 1 st Ed. Nivaldo Tro Roy Kennedy Massachusetts Bay ommunity ollege Wellesley ills, MA 2008, Prentice all omparisons of the States of Matter the solid and liquid states have
WKS Name Intermolecular Forces Period Date
WKS Name Intermolecular orces Period Date Introduction: Substances exist in three states of matter: solids, liquids and gases. We know that molecules are... (a) far apart in gases; (b) close together,
11.1 Intermolecular Forces Keeping Matter Together
11.1 Intermolecular Forces Keeping Matter Together Nature s Forces Dr. Fred Omega Garces Chemistry 201 Miramar College 1 Intermolecular Forces Keeping Matter Together Phases of Matter: Terminology Energy
Name: Date: Blk: Examine your periodic table to answer these questions and fill-in-the-blanks. Use drawings to support your answers where needed:
Name: Date: Blk: NOTES: BONDING Examine your periodic table to answer these questions and fill-in-the-blanks. Use drawings to support your answers where needed: I. IONIC BONDING Ionic bond: formed by the
2.26 Intermolecular Forces
2.26 Intermolecular Forces Intermolecular forces are the relatively weak forces that exist between molecules. These govern the physical properties such as boiling point, melting point, solubility in solvents
Intermolecular forces are classified into four major types.
Intermolecular forces are classified into four major types. 1. Ion-dipole: IMF s that occur between neighboring an ion solution and a polar molecule (dipole) also in solution. Na+ 2. Dipole-dipole: IMF
Intermolecular forces
Intermolecular forces World of Chemistry, 2000 Updated: August 29, 2013 The attractions of molecules to each other are known as intermolecular forces to distinguish them from intramolecular forces, such
Chapter 2 Structure and Properties of Organic Molecules. Advanced Bonding: Review
hapter 2 Structure and Properties of Organic Molecules hemistry 231 Organic hemistry I Fall 2007 Advanced Bonding: Review Atomic Quantum Mechanics cannot explain how molecules like 4 form: Valence Bond
Chapter 14. Liquids and Solids
Chapter 14 Liquids and Solids Section 14.1 Water and Its Phase Changes Reviewing What We Know Gases Low density Highly compressible Fill container Solids High density Slightly compressible Rigid (keeps
Properties of Solutions
Properties of Solutions The States of Matter The state a substance is in at a particular temperature and pressure depends on two antagonistic entities: The kinetic energy of the particles The strength
Wave Properties of Electrons. Chapter 2 Structure and Properties of Organic Molecules. Wave Interactions. Sigma Bonding
rganic hemistry, 5 th Edition L. G. Wade, Jr. hapter 2 Structure and Properties of rganic Molecules Jo Blackburn Richland ollege, Dallas, TX Dallas ounty ommunity ollege District 2003, Prentice all Wave
Ionic Compounds and Ionic Bonding
Ionic Compounds and Ionic Bonding Definitions Review: Crystal Lattice - 3D continuous repeating pattern of positive and negative ions in an ionic solid Formula Unit- smallest possible neutral unit of an
1. What is the difference between intermolecular forces and intramolecular bonds? Variations in the Boiling Point of Noble Gases
NAME: DATE: Chemical Bonding Forces Assignment 1. What is the difference between intermolecular forces and intramolecular bonds? 2. Use your data booklet to fill in the following chart Variations in the
What are covalent bonds?
Covalent Bonds What are covalent bonds? Covalent Bonds A covalent bond is formed when neutral atoms share one or more pairs of electrons. Covalent Bonds Covalent bonds form between two or more non-metal
2.26 Intermolecular Forces
2.26 Intermolecular Forces Intermolecular forces are the relatively weak forces that exist between molecules. These govern the physical properties such as boiling point, melting point, solubility in solvents
Gases, Liquids, Solids, and Intermolecular Forces
Chapter 6 Gases, Liquids, Solids, and Intermolecular Forces Solids: The particles of a solid have fixed positions and exhibit motions of vibration. Liquids: The particles of a liquid are free to move within
INTERMEDIATE BONDING AND INTERMOLECULAR FORCES. Electronegativity
INTERMEDIATE BNDING AND INTERMLECULAR FRCES Electronegativity is defined as follows Electronegativity Electronegativity is the ability of an atom within a covalent bond to attract the bonding pair of electrons.
Red Beryl, Be 3 Al 2 Si 6 O 18. Liquids and
Red Beryl, Be 3 Al 2 Si 6 O 18 - Liquids and Solids Copyright Houghton Mifflin Company. All rights reserved. 16a 2 A Molecular Comparison of Liquids and Solids Figure 16.47: The number of molecules in
THE SOLIDS AND LIQUID STATES ATOMIC SOLIDS AND LIQUIDS
SCH4U1 - DVORSKY THE SOLIDS AND LIQUID STATES The physical properties of solids and liquids are strongly influenced by the forces of attraction between the particles within them, known as intermolecular
Chapter 3. Crystal Binding
Chapter 3. Crystal Binding Energy of a crystal and crystal binding Cohesive energy of Molecular crystals Ionic crystals Metallic crystals Elasticity What causes matter to exist in three different forms?
INTERMOLECULAR FORCES: Polarity of Molecules. Seventh Course (General Chemistry) by Dr. Istadi
INTERMOLECULAR FORCES: Polarity of Molecules Seventh Course (General Chemistry) by Dr. Istadi 1 Types of Intermolecular Forces The nature of the phases and their changes are due primarily to forces among
CH1010 Exam #2 Study Guide For reference see Chemistry: An Atoms-focused Approach by Gilbert, Kirss, and Foster
CH1010 Exam #2 Study Guide For reference see Chemistry: An Atoms-focused Approach by Gilbert, Kirss, and Foster Chapter 3: Atomic Structure, Explaining the Properties of Elements Trends to know (and be
Dipole-Dipole Interactions https://www.youtube.com/watch?v=cerb1d6j4-m London Dispersion Forces https://www.youtube.com/watch?
CATALYST Lesson Plan GLE Physical Science 22. Predict the kind of bond that will form between two elements based on electronic structure and electronegativity of the elements (e.g., ionic, polar, nonpolar)
Chapters 11 and 12: Intermolecular Forces of Liquids and Solids
1 Chapters 11 and 12: Intermolecular Forces of Liquids and Solids 11.1 A Molecular Comparison of Liquids and Solids The state of matter (Gas, liquid or solid) at a particular temperature and pressure depends
Liquids, Solids, and Intermolecular Forces or. Why your Water Evaporates and your Cheerios Don t. Why are molecules attracted to each other?
Liquids, Solids, and Intermolecular Forces or Why your Water Evaporates and your heerios Don t Why are molecules attracted to each other? 1 Intermolecular attractions determine how tightly liquids and
PROPERTIES OF SOLIDS SCH4U1
PROPERTIES OF SOLIDS SCH4U1 Intra vs. Intermolecular Bonds The properties of a substance are influenced by the force of attraction within and between the molecules. Intra vs. Intermolecular Bonds Intramolecular
For the following intermolecular forces:
Lecturenotes 1 unit6_review_exercise_2017.odt Lecturenotes 2 unit6_review_exercise_2017.odt Lecturenotes 3 unit6_review_exercise_2017.odt Lecturenotes 4 unit6_review_exercise_2017.odt Answers: 1. Ionic
THE BIG IDEA: BONDING AND INTERACTIONS.
HONORS CHEMISTRY - CHAPTER 8 COVALENT BONDS OBJECTIVES AND NOTES - PART 2 - V12 NAME: DATE: PAGE: THE BIG IDEA: BONDING AND INTERACTIONS. Essential Questions 1. How is the bonding in molecular compounds
Salt vs. Sugar. 1. Ionic Compounds. 2. Molecular Compounds (Cont.) 12/18/2014. What is this Compound You Speak Of? Sodium Chloride Dissolving in Water
Salt vs. Sugar Unit 7: Chemical Compounds & Formulas Lesson#7.1: Types of Compounds What is this Compound You Speak Of? Compound: Any substance that is formed by the chemical bonding of atoms. We classify
Ch 9 Liquids & Solids (IMF) Masterson & Hurley
Ch 9 Liquids & Solids (IMF) Masterson & Hurley Intra- and Intermolecular AP Questions: 2005 Q. 7, 2005 (Form B) Q. 8, 2006 Q. 6, 2007 Q. 2 (d) and (c), Periodic Trends AP Questions: 2001 Q. 8, 2002 Q.
PROPERTIES OF LIQUIDS
PROPERTIES OF LIQUIDS Properties of liquids are related to the INTERMOLECULAR FORCES OF ATTRACTION in various liquids. I. SURFACE TENSION Molecule attracted toward the interior of the liquid Molecule:
READING. Review of Intermolecular Forces & Liquids (Chapter 12) Ion-Ion Forces. Ion-Dipole Energies
Review of Intermolecular Forces & Liquids (Chapter 12) CEM 102 T. ughbanks READIG We will very briefly review the underlying concepts from Chapters 12 on intermolecular forces since it is relevant to Chapter
State the two factors required for successful collisions to occur. Activation energy and correct collision geometry
1 State the two factors required for successful collisions to occur Activation energy and correct collision geometry 2 State the definition of activation energy The minimum kinetic energy for successful
IMFA s. intermolecular forces of attraction Chez Chem, LLC All rights reserved.
IMFA s intermolecular forces of attraction 2014 Chez Chem, LLC All rights reserved. **London Dispersion Forces Also know as Van der Waals forces A momentary non symmetrical electron distribution that can
Force Model Physical basis Energy (kj/ mole) Example
All course materials, including lectures, class notes, quizzes, exams, handouts, presentations, and other materials provided to students for this course are protected intellectual property. As such, the
Chem 11 Unit 4 POLARITY, MOLECULE SHAPE, and BEHAVIOUR
Chem 11 Unit 4 POLARITY, MOLECULE SHAPE, and BEHAVIOUR Polarity is unequal distribution of a charge on a molecule caused by: 1) some degree of ionic character in the bonding (i.e. unequal electron sharing)
Chapter 11. Intermolecular Forces, Liquids, and Solids
Chapter 11. Intermolecular Forces, Liquids, and Solids A Molecular Comparison of Gases, Liquids, and Solids Physical properties of substances are understood in terms of kinetic-molecular theory: Gases
Unit 9: CHEMICAL BONDING
Unit 9: CHEMICAL BONDING 1 Unit 9: Bonding: 1. Electronegativity 2. Intramolecular Bonding 3. Intermolecular Bonding 4. Drawing Lewis Structures 5. Lewis Structures for Polyatomic Ions 6. Exceptions to
9/2/10 TYPES OF INTERMOLECULAR INTERACTIONS
Tro Chpt. 11 Liquids, solids and intermolecular forces Solids, liquids and gases - A Molecular Comparison Intermolecular forces Intermolecular forces in action: surface tension, viscosity and capillary
Ch. 11: Liquids and Intermolecular Forces
Ch. 11: Liquids and Intermolecular Forces Learning goals and key skills: Identify the intermolecular attractive interactions (dispersion, dipole-dipole, hydrogen bonding, ion-dipole) that exist between
RW Session ID = MSTCHEM1 Intermolecular Forces
RW Session ID = MSTCHEM1 Intermolecular Forces Sections 9.4, 11.3-11.4 Intermolecular Forces Attractive forces between molecules due to charges, partial charges, and temporary charges Higher charge, stronger
Molecular Geometries. Molecular Geometries. Remember that covalent bonds are formed when electrons in atomic orbitals are shared between two nuclei.
Molecular Geometries Lewis dot structures are very useful in determining the types of bonds in a molecule, but they may not provide the best insight into the spatial geometry of a molecule, i.e., how the
Phase Change DIagram
States of Matter Phase Change DIagram Phase Change Temperature remains during a phase change. Water phase changes Phase Diagram What is a phase diagram? (phase diagram for water) Normal melting point:
Why does more NaCl dissolve in 100 g of water than in 100 g of gasoline? Chapter 10
I sometimes wonder (because I m a nerd). Why does more NaCl dissolve in 100 g of water than in 100 g of gasoline? Chapter 10 Why does 2O have a higher boiling point than hexane (C3C2C2C2C2C3)? Liquids,
CS 2, HCN, BeF 2 Trigonal planar. Cl 120 BF 3, AlCl 3, SO 3, NO 3-, CO NCl 3,PF 3,ClO 3,H 3 O + ...
Shape of molecules Name No bonding pairs No lone pairs Diagram Bond angle Examples linear 2 0 l Be l 180 2, S 2, N, Be 2 Trigonal planar 3 0 l l 120 B 3, All 3, S 3, N 3-, 2-3 B Tetrahedral 4 0 109.5 Sil
Chapter 10. Dipole Moments. Intermolecular Forces (IMF) Polar Bonds and Polar Molecules. Polar or Nonpolar Molecules?
Polar Bonds and Polar Molecules Chapter 10 Liquids, Solids, and Phase Changes Draw Lewis Structures for CCl 4 and CH 3 Cl. What s the same? What s different? 1 Polar Covalent Bonds and Dipole Moments Bonds
Physical Chemistry - Problem Drill 01: Chemistry and Physics Review
Physical Chemistry - Problem Drill 01: Chemistry and Physics Review No. 1 of 10 1. Chemical bonds are considered to be the interaction of their electronic structures of bonding atoms involved, with the
Scientists learned that elements in same group on PT react in a similar way. Why?
Unit 5: Bonding Scientists learned that elements in same group on PT react in a similar way Why? They all have the same number of valence electrons.which are electrons in the highest occupied energy level
Molecules have to move past one another to flow, and stronger attractions between molecules make that more difficult!
40 VISCOSITY - viscosity can also be explained (at least partially) by looking at INTERMOLECULAR FORCES! - For a liquid to FLOW, its molecules must move past one another. This means that some of the molecules
Solids, Liquids and Gases
WHY? Why is water usually a liquid and not a gas? Why does liquid water boil at such a high temperature for such a small molecule? Why does ice float on water? Why do snowflakes have 6 sides? Why is I
Announcements. No class on Friday---faculty day at the Ateneo. Read Chapter 13--Solutions and start the homework problems posted on the blog
Announcements No class on Friday---faculty day at the Ateneo Read Chapter 13--Solutions and start the homework problems posted on the blog Quiz next week on Chapter 11 Electronegativity values from a table
As we ended the lectures on gases, we were introduced to an idea that serves as foundation for the material in this lecture:
LECTURE 16. INTRODUCTION TO INTERMOLECULAR FORCES As we ended the lectures on gases, we were introduced to an idea that serves as foundation for the material in this lecture: As we were introduced to ideal
Chapter #16 Liquids and Solids
Chapter #16 Liquids and Solids 16.1 Intermolecular Forces 16.2 The Liquid State 16.3 An Introduction to Structures and Types of Solids 16.4 Structure and Bonding of Metals 16.5 Carbon and Silicon: Network
Chapter 11. Liquids and Intermolecular Forces
Chapter 11 Liquids and Intermolecular Forces States of Matter The three states of matter are 1) Solid Definite shape Definite volume 2) Liquid Indefinite shape Definite volume 3) Gas Indefinite shape Indefinite
Ionic Bonds. H He: ... Li Be B C :N :O :F: :Ne:
Ionic Bonds Valence electrons - the electrons in the highest occupied energy level - always electrons in the s and p orbitals - maximum of 8 valence electrons - elements in the same group have the same
Rama Abbady. Zina Smadi. Diala Abu-Hassan
1 Rama Abbady Zina Smadi Diala Abu-Hassan (00:00) (10:00) Types of Molecules in the Cell 1. Water Molecules: a large portion of the cell mass is water (70% of total cell mass). 2. Organic molecules (carbon