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

Test 2 Help Session Notes

by: Madison Greer

Test 2 Help Session Notes ch 1213

Marketplace > Mississippi State University > Chemistry > ch 1213 > Test 2 Help Session Notes
Madison Greer

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

These are some really helpful notes from the help session!
Chemistry 1
Erin Dornshuld
Study Guide
Chemistry, Test 2, Study Guide, help session
50 ?




Popular in Chemistry 1

Popular in Chemistry

This 3 page Study Guide was uploaded by Madison Greer on Thursday March 3, 2016. The Study Guide belongs to ch 1213 at Mississippi State University taught by Erin Dornshuld in Summer 2015. Since its upload, it has received 30 views. For similar materials see Chemistry 1 in Chemistry at Mississippi State University.

Similar to ch 1213 at MSU


Reviews for Test 2 Help Session Notes


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: 03/03/16
Refer to your Lecture Notes!!! • How do you tell if it’s polar or non-polar? • polarity of bonds • polarity of molecules • dipole • X—Y (atoms are different= polar bond) X—X (atoms are the same= non-polar bond) • • Is the molecule symmetric or not? • CO 2 • O=C=O (dipole? no, non-polar molecule) • H 2 • H-O-H (dipole? yes, polar molecule) • CH (4ethane) • determine number of electron domains (4) • according to VSEPR, electron domain geometry=tetrahedral • molecular geometry (ignoring all lone pairs)= tetrahedral • dipole? no, non-polar • How do we know what atoms are more electronegative? • periodic table trends • electronegativity increases up and to the right on the periodic table • Fluorine is the most electronegative atom, Francium is the least electronegative atom • How do you determine formal charges? • CH 4 • C in methane- (4) - (4) - (0)= 0 • H in methane- (1) - (1) - (0)= 0 • FC= (# of valence electrons) - (# of lines) - (# of dots) • Be able to draw Lewis Structures and determine the formal charge for all atoms in a Lewis Structure. • Be able to determine electron and molecular geometry • know table chapter 6 • Which bond is the strongest/weakest? • single bond= weakest, longest • double bond • triple bond= strongest, shortest • ionic compound- metal bonded to nonmetal; ionic compound • ionic bonds are MUCH stronger than covalent bonds • NaCl compared to gasoline • How do you determine bond angle? • trigonal planar geometry= 120 degrees • If you added in a double bond, the bond angle between the two single bonds would be < 120 degrees • Double bonds take up more space than single bonds; triple bonds take up more space than double bonds • ideal bond angle between the two H for water- 109.5 degrees • realistic bond angle between the two H for water- < 109.5 degrees • Lone pairs take up more space than bonds • TEST QUESTION: What is the ideal and realistic bonds angle for water? • ideal: 109.5 degrees • realistic: < 109.5 degrees • How do you decide which resonance structure is the most stable? • use formal charges CO 2- • 3 • Si, P, and S can all have expanded octets • expanded octets can have up to 12 electrons (6 bonds, 3 double bonds) • Know all the polyatomic ions (approx. 11-12 naming questions) • 10 of these are matching • FeCl 2 iron (II) chloride • know the functional groups! • hydroxide- OH • aldehyde- CHO • carboxylic acid- COOH • amine- NH 3 • Know the difference between cis- and trans- structural isomers • cis- same molecule, same side • trans- same molecule, different sides • Know how to determine empirical and molecular formula!!! • Look at the example we did in class! • Assume a 100 g sample • Bond order • molecular orbital theory • know the “boxes” for MO theory • right boxes- Nitrogen and everything to the left use the boxes on the left • left boxes- Oxygen and everything to the right use the boxes on the right • single boxes are sigma boxes • start with sigma and alternate with sigma* (i.e. sigma, sigma*, sigma, sigma*) • * means it’s antibonding • double boxes are pi boxes • start with pi and alternate with pi* (i.e. pi, pi*, pi, pi*) • * means it’s antibonding • BO= # of electrons in bonding orbitals - # of electrons in anti bonding orbitals/ 2 • Paramagnetic or Diamagnetic? • paramagnetic- unpaired electrons • diamagnetic- paired electrons • What is the highest energy occupied molecular orbital? • What is the lowest unoccupied molecular orbital? • What type of ‘show your work’ problems are we gonna have on the test? • TEST BREAKDOWN • 17 multiple choice • only grading 16 • 10 matching 2 questions that make you draw Lewis structure, figure out formal • charge, electron domain geometry, molecular geometry, dipole (yes or no) • 1 question to determine the empirical formula and molecular formula. • MO diagram question, determine bond order, paramagnetic or diamagnetic, highest energy occupied molecular orbital, lowest unoccupied molecular orbital • Know all the intermolecular forces and what that form between!!! • London dispersion forces arise from temporary dipoles • Be able to count sigma and pi bonds • Intermolecular Forces • proportional- if A increases, B will also increase • inversely proportional- if A increases, B will decrease • Hybridization • sp- 2 • sp - 3 • sp - 4 3 • sp d- 5 • sp d - 6


Buy Material

Are you sure you want to buy this material for

50 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

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

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.