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

CHEM 116 Exam #2 Study Guide

by: Sophia Valla

CHEM 116 Exam #2 Study Guide Chem 116

Marketplace > West Virginia University > Chemistry > Chem 116 > CHEM 116 Exam 2 Study Guide
Sophia Valla
GPA 3.5

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

Things to be expected on the next exam
Fundamentals of Chemistry
Study Guide
General Chemistry, Organic Chemistry
50 ?




Popular in Fundamentals of Chemistry

Popular in Chemistry

This 5 page Study Guide was uploaded by Sophia Valla on Saturday October 1, 2016. The Study Guide belongs to Chem 116 at West Virginia University taught by Xu in Summer 2016. Since its upload, it has received 7 views. For similar materials see Fundamentals of Chemistry in Chemistry at West Virginia University.


Reviews for CHEM 116 Exam #2 Study Guide


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: 10/01/16
CHEM 116 Exam #2 Study Guide Integrated Rate Law ● Equation of how [A] varies with time −△[A] Rate= △t       0th Order Rxn ● Rate = constant 0 Rate=k[A]❑ →rate=k [A]❑=[t]❑ −kt0 0th Order Half Life 1 [A]❑ 0 T = 2 2k 1st Order Rxn −kt ln[ A]❑tln[A]❑ −k0    or   [A]❑=[t]❑ e❑ 0 1st Order Half Life ● All radioactive decay rxns are 1st order 1 ln2 T = 2 k 2nd Order Rxn 1 1 = +kt [A]❑ t [A]❑ 0 2nd Order Half Life 1 1 T 2 k[A]❑ 0 Rxn Mechanisms ● Molecularity­ # of particles involved in elementary steps Molecularity (rare)  1 molecule dissociation             1 uni (popular) 2 molecules collide           2 bi (rare) 3 molecules collide           3 ter  Molecularity                                  Rate Law A → B+C         1 rate = k [A] A+B         2 rate = k [A] [B] 2 A+A         2 rate = k [A]❑ A+B+C         3 rate = k [A][B][C] 2 A+A+B         3 rate = k [A]❑ [B] A+A+A         3 rate = k [A❑ 3 ● Intermediate ­ product of earlier step and reactant of a later step ○ Not in net reaction ● Catalyst ­ substance repeated in an earlier step then produced in the same form in  a later step ○ Speed up or slow down rxn ● Slowest step is the rate determining step Collision Theory and the Relationship of K and T ● In order for a collision to make a rxn ○ Is it energetic enough? (heat it up) ■ T ↑ KE ↑ ○ Does it have the correct orientation? Transition States ● High PE = unstable Arrhenius Eqn −E❑a k=Ae❑ RT * E❑ a in Joules  * R = 8.314 J/mol*K 1 lnk=ln A+(−E❑ /Ra( )T k❑ 2 −E❑ a 1 1 *if there are 2 values     ln = ( − ) k❑ 1 R T❑ 2 T ❑1 Chemical Equilibrium  A+B↔C+D ● Forward rate ○ [Reactants]  ↓ Rate ↓ rate=k❑ [ A][B] f ● Reverse rate ○ [Products]  ↑ Rate  ↑ rate=k❑ [C][D] r ● When  k❑ =f❑ r all conc. remain unchanged ● Reaction is @ equil. when all reactants/products conc. are constant with time aA+bB↔cC+dD a b c d *(@ equil. )    k❑ [f]❑ [B]❑ =k❑ [C]❑ [r]❑ c d k❑ f [C]❑ [D]❑ k❑ = a b=K❑ c   r [ A]❑ [B]❑ *K ❑ c = equil. Constant 1. Value is temperature dependent 2. Value is independent to the initial conc. of reactants/products 3 K ❑ c10❑ [P] >> [R] *forward rxn almost complete −3❑ K ❑ c10❑ [R] >>[P] * forward rxn hardly proceeds *EXCLUDE ANY SOLID OR LIQUID FROM EQUIL.CONSTANT EXPRESSION (ONLY GASES) 2C❑ +(s)❑ ↔2C2❑(g) (g) ❑ 2 O¿ ¿ ¿      *no C❑ (s) 2 2 K ❑ = [CO]❑ →K ❑ = [CO]❑ c [C]❑ [O❑ ] c ¿ 2 K ❑ P ● Equil constant in terms of partial pressure (gas phase rxns) aA❑ +(g) ↔cC❑(g)D❑ (g) (g) c d ❑ PC❑ PD❑ K ❑ P a b PA❑ PB❑ K ❑ △n P=kc(RT)❑ Δ n=n❑ gas product gasreactant Reaction Quotient ( Q❑ ¿c ● Same format with kc but with no equil concs.  Q❑ >K❑ Q❑ = [P]↓ c c c [R]↑ *need to decrease  *proceeds left Q❑ <K❑ c c *proceeds right  Q❑ =c ❑ c *@ equil


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."

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!"


"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.