105 F11 Lecture 20 cmpd

105 F11 Lecture 20 cmpd - lone pairs Nonbonding pairs are...

Info iconThis preview shows pages 1–20. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 105
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What is the structure of ozone? O O O O O O O-O=O ↔ O=O- O
Background image of page 2
From 2-D to 3-D O C Lewis Structures Molecular Shape
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Molecular shape influences reactivity
Background image of page 4
A model to approximate shape Electron domains (regions of electron density) repel each other Best shape comes from minimizing repulsion # influences shape Consider s and p valence electrons Valence shell electron-pair repulsion model The VSEPR Model
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What counts as electron domains? Bonds between atoms Non-bonding pairs of electrons “lone pairs”
Background image of page 6
Electron Geometry
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dichloromethane CH2Cl2 can be used to extract caffeine from coffee. What is the molecular geometry of CH2Cl2? A. Linear B. Bent C. Tetrahedral D. Trigonal planar E. Octahedral
Background image of page 8
What counts as electron domains? Bonds between atoms Non-bonding pairs of electrons
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 16
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 18
Background image of page 19

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 20
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: lone pairs Nonbonding pairs are physically larger than bonding pairs. Greater repulsion tends to decrease bond angles. Multiple Bonds and Bond Angles Double and triple bonds place greater electron density on one side of the central atom than do single bonds. Therefore, they also affect bond angles. Using a different set of eyes What is the electronic geometry of ammonia (NH3)? Always draw the Lewis structure first! In which of the following molecules is the HXH bond angle smallest (where X is central atom): CH4, H2O, and NH3? A. CH4 B. H2O C. NH3 D. They are all equal E. I have no idea Defining molecular shape Carbon Dioxide Water A) Polar or B) Non-polar...
View Full Document

This note was uploaded on 02/28/2012 for the course CHEM 105 taught by Professor Macedone during the Fall '07 term at BYU.

Page1 / 20

105 F11 Lecture 20 cmpd - lone pairs Nonbonding pairs are...

This preview shows document pages 1 - 20. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online