New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here


by: Jayson Dooley II


Jayson Dooley II
GPA 3.83


Almost Ready


These notes were just uploaded, and will be ready to view shortly.

Purchase these notes here, or revisit this page.

Either way, we'll remind you when they're ready :)

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Class Notes
25 ?




Popular in Course

Popular in Chemistry

This 4 page Class Notes was uploaded by Jayson Dooley II on Saturday September 12, 2015. The Class Notes belongs to Chem 1A at University of California - Irvine taught by Staff in Fall. Since its upload, it has received 62 views. For similar materials see /class/201945/chem-1a-university-of-california-irvine in Chemistry at University of California - Irvine.

Similar to Chem 1A at UCI

Popular in Chemistry




Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/12/15
Chemistry 1A Professor Janda Fall 2009 Final Review Packet with Answers Chapter 11 Intermolecular Forces and Solids and Liquids o Intermolecularfarces are attractive forces between molecules Veena Dharmadhikari Allison Lai 0 Measured with boilingmelting points AHVZp AHfus AHsub o Intramalecularfarces hold atoms together in a molecule 0 Generally intermolecular forces are much weaker than intramolecular forces Basis of Attraction Force Model Nonbonding Intermolecular iondipole Ion charge 40600 9 6 dipole charge H bond n 6 aquot Polar bond to 1 10 40 A H quotquotquotB dipolcclmrge high EN of N O F Dipolcedipolc a quotquot Dipole charges 5725 Ioninduced u 6 Ion charge 3 l5 dipole polarizzlble e H cloud Dipole induced e quotquot Dipole charge L I 0 dipole polarizable c quot c ou Dispersion Polarizable cf 005 40 London x clouds nergy KJMoi Example Nao CIl C Febmo2 H ClquotCI Cl o Dipoledipole forces Attractive forces between polar molecules 0 Strength of interaction increase as Coulomb charges and the dipole moment increase induced in atoms or molecules Molecular Size IonDipole forces Attractive forces between an ion and a polar molecule Dispersion forces Attractive forces that arise as a result of temporary dipoles o Larger and heavier atoms and molecules exhibit stronger dispersion forces than smaller and lighter ones 0 In a larger atom or molecule valence electrons are farther from the nuclei than in a smaller atom or molecule They are less tightly held and can form more easily temporary dipoles I London dispersion forces tend to be 0 stronger between molecules that are easily polarized o weaker between molecules that are not easily polarized O electrons and the radius of the atom increases boiling points increase from to bottom in a group because the number of Chemistry 1A Professor Janda Fall 2009 o Veena Dharmadhikari Allison Lai Intermolecular Force and Interaction Distance r Type Dependence on r Two charges Coulomb 1r lon Dipole 1r2 DipoleDipole fixed angle lr3 DlpcleeDipOle gas 1r Dipolerlnduced Dlpole 1hquoti Dispersion induced Dipole 1r6 Hydrogen Bonding species can form hydrogen bonds with water if it contains OF or N also ifit has an H atom bonded to one of these elements 0 Summary Classi cation of Intermolecular Forces ong ionic attraction The more ionic the higher the lattice energy the larger the ionic attraction 2 Intermediate dipoleedipoleforces Substances whose molecules have dipole moment 3 Weak dispersion forces or van der Waal39s force These forces always operate in any substance induced dipole is weaker than the dipoledipole interaction In general the heavier the molecule the stronger the van der Waal39s force of intemction 4 Hydrogen bond Certain substances such as HZO HF NH form hydrogen bonds Also molecules of many organic compounds such as alcohols acids amines and amino acids contain these groups 5 Covalent bonding Covalent is lean 39 force mther than 39 iorce Yet some solids are formed due to covalent bonding such as diamond and silicon the entire crystal are linked together by covalent bonding 6 Metallic bonding Forces between atom in metallic solids belong to another category Valence e run freely in the entire solid providing good conductivity for heat and electric energy Liquids o 000 Surface tension is the amount of energy required to stretch or increase the surface of a liquid by a unit area Cohesion is the intermolecular attmction between like molecules water molecules Adhesion is an attraction between unlike molecules capillary tube and water Viscosity is a measure of a uid s resistance to ow Chemistry 1A Veena Dharmadhikari Professor Janda Allison Lai Fall 2009 Problems 1 What types of intermolecular forces eXist between the following pairs a HBr and His dipoledipole vdw b C12 and CBr4 vdw c 12 and NO ioninduced dipole vdw d NH3 and C5H6 dipoleinduced vdw 2 A hydrogen bond is a special type of dipoledipole interaction between the hydrogen atom in a polar bond such as NiH 07H or FiH and an electronegative O N or F atom A species can form hydrogen bonds with water if it contains one of the three electronegative elements F O or N or it has an H bonded to one of these three elements 3Which of the following can form hydrogen bonds with water CH30CH3 CH4 F39 HCOOH Nal 3 List the types of intermolecular forces that eXist between the following species a benzene C6H6 vdw b CH3Cl vdw dipoledipole c PF3 vdw dipoledipole d NaCl vdw ionion e CS2 vdw 4 List the types of intermolecular forces that eXist between the following species a benzene C6H6 vdw b CH3Cl vdw dipoledipole c PF3 vdw dipoledipole d NaCl vdw ionion forces e CS2 vdw 5 Which of the following species are capable of hydrogenbonding among themselves a CZHS b H c KF d BeHz e CH3 COOH refer back to the de nition of a hydrogen bond 6 Which substance in each of the following pairs would you expect to have the higher boiling point Explain why a Ne or Xe b C02 or CS2 c CH4 or C12 d F or LiF e NH3 or PH3 7 What kind of attractive forces must be overcome in order to a melt ice hydrogen bonddispersion forces b boil molecular bromine dispersion forces c melt solid iodine dispersion forces d dissociate F2 into F atoms covalent bond Chemistry 1A Professor Janda Fall 20 l N S Veena Dharmadhikari Allison Lai 09 For hydrogen PV nRT where P is pressure V is volume n is number of moles R is the gas constant and T is temperature Initially P1PV1 100cm3n1nT10273 273K PV1 nRTl Finally P2 P V2 872 cm3 n2 n T2 PVZ nRTz Note that P n and R are the same Therefore the equations may be rewritten PnR TIN1 TZN2 and T2 VleNl Plugging in the values we know T2 872 cm3 x 273 K 1000 cm3 T2 238 K PV nRT where P is pressure V is volume n is number of moles R is the gas constant and T is temperature P V 300 liters n 250 g XeF4 x 1 mol 2073 g XeF4 00121 mol R 00821latmmolK T27380353K Plugging in these values P nRTN P 00121 mol x 00821latmmolKx 353 K 300 liter P 0117 atm 0Camp 1 atm P v 858 L n 896 g 1 mol320g 28 moi T 21273K 294 K P nRTN 28 mol008206 LatmmolK294 K 858 L P 79 atm


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Amaris Trozzo George Washington University

"I made $350 in just two days after posting my first study guide."

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.