Ohio State - CHEM - 122

1.(5 pts) Which of the following molecules has the strongest London forces? a) H2O b) HCl c) O2 d) ClO2 e) HClO2.(7 pts) Which member of each of the following pairs has the stronger intermolecular forces? NH2NH2 or H2S a) b) c) d) e) NH2NH2 NH2

Ohio State - CHEM - 122

Useful information: R = 8.3145 J/molAK, R = 0.08206 LAatm/molAK, K = C + 273.15, sliquid water = 4.184 J/gAC, NA = 6.022 x 10231.(6 pts) Which of the following statements is incorrect? a) BF3 has only London forces between neighboring molecules.

Ohio State - CHEM - 122

1.(5 pts) Consider the reaction represented below. C2H4Br2 + 3 KI 6 C2H4 + 2 KBr + KI3 If the concentration of KI is decreasing at a rate of 0.807 M/min, what is the rate of change in the concentration of KBr? a) 0.134 M/min d) 0.538 M/min b) 0.269

Ohio State - CHEM - 122

1.(6 pts) In the following reaction 2 MnO4-(aq) + 5 H2O2(R) + 6H+(aq) 6 2 Mn2+(aq) + 8 H2O(R) + 5 O2(g) the concentration of MnO4- dropped from 0.5684 M to 0.5522 M in 2.23 minutes. What was the average rate of formation of O2, in M/min, during thi

Ohio State - CHEM - 122

THE MEAN WAS 115.00 (65.71%) THE STANDARD DEVIATION WAS 31.21, 453 students scored THE POSSIBLE RANGE WAS FROM 0.00 TO 175.00 THE ACTUAL RANGE WAS FROM 24.00 TO 175.00 (13.7% TO 100.0%)High: 175Low: 24DISTRIBUTION OF SCORES 0.00 - 9.99 0 10.00 -

Ohio State - CHEM - 122

1.The volume of one cylinder in an automobile is 0.44 L. The cylinder is filled with a gasoline and air mixture to a total pressure of 1.0 atm and then is compressed to 0.073 L prior to ignition. What pressure must be applied to produce this compre

Ohio State - CHEM - 122

Ohio State - CHEM - 122

Pop Quiz Number 0Chemistry 122, Dr. MathewsFirst Week, WI, 2005Name_ Lab Instructor:_ 1. The average speed of a nitrogen molecule in air at 25 oC is 515 m/s. Convert this speed to miles per hour. Recall that 1 hr = 60 min, 1 mi = 1.6093 km, 1 k

Ohio State - CHEM - 122

MQ-1 122, WI 07:THE MEAN WASTHE MODE WAS 95.00 WITH 10 STUDENTS. THE MEDIAN WAS 112.50 THE STANDARD DEVIATION WAS 29.35112.00 (64.00%) High: 175 Low 38N = 472THE POSSIBLE RANGE WAS FROM 0.00 TO 175.00 THE ACTUAL RANGE WAS FROM 38.00 TO 175.0

Ohio State - CHEM - 122

Ohio State - CHEM - 122

Some Useful informationgas constant R = 0.08206 L-atm/mol-K = 8.314 J/mol-K for water at 25 oC Kw = 1.00 x 10-14 Arrhenius equation,ln k = ln A -Ea RTThe quadratic equation has the solutionsax 2 + bx + c = 0- b b 2 - 4ac x= 2aFrom the XR

Ohio State - CHEM - 122

Some Useful Information Avogadro's number = 6.022 x 1023 gas constant, R = 8.314 J/mol-K R = 0.08206 L-atm/mol-K van der Waals Equation: n 2a P + 2 (V - nb) = nRT V Clausius Clapeyron Equationln P = -H vap 1 +C R TorH vap 1 P 1

Ohio State - CHEM - 122

Dr. C. Weldon Mathews Chem 122 Office: 0042 Evans Lab Telephone: 292-1574 email: mathews.6@osu.edu course web site: http:/www.chemistry.ohio-state.edu/~mathews/chem122wi07/ Office hours: TR 12:30 - 2:00 pm TR 4:00 - 5:00 pm or by appointmentChapter

Ohio State - CHEM - 122

Week 2 lectures-tentative10.7 10.8 Kinetic-Molecular Theory 420 Application to the Gas Laws Molecular Effusion and Diffusion 423 Graham's Law of Effusion Diffusion and Mean Free Path Real Gases: Deviations from Ideal Behavior The van der Waals Equat

Ohio State - CHEM - 122

Week 2 lectures-tentative10.7 10.8 Kinetic-Molecular Theory 420 Application to the Gas Laws Molecular Effusion and Diffusion 423 Graham's Law of Effusion Diffusion and Mean Free Path Real Gases: Deviations from Ideal Behavior The van der Waals Equat

Ohio State - CHEM - 122

The quiz next week will be given during your recitation. It will cover material starting with section 10.7.First Midquarter Exam Monday, Jan 29 6:30-7:48 pm Rooms TBA Chaps 10, 11, 13Dr. Zellmer's web site has very useful information on BP data an

Ohio State - CHEM - 122

First Mid-quarter Examination MQ-1 on Monday, Jan. 29 at 6:30 pm Covering Chapters 10, 11, and 13 room TBAFor students with a scheduled-class conflict with the first Mid-Quarter Exam:(1) Send me an email today with a copy of your class schedule, a

Ohio State - CHEM - 122

First Mid-quarter ExaminationMQ-1 on Monday, Jan. 29at 6:30 pm Covering Chapters 10, 11, and 13 room TBAFor students with a scheduled-class conflict with the first Mid-Quarter Exam:(1) Send me an email today with a copy of your class schedule,

Ohio State - CHEM - 125

Ohio State - CHEM - 122

Demo today ?1Colloids Hydrophilic and Hydrophobic Colloids Focus on colloids in water. "Water loving" colloids: hydrophilic. "Water hating" colloids: hydrophobic. Molecules arrange themselves so that hydrophobic portions are oriented towards

Ohio State - CHEM - 125

Ohio State - CHEM - 122

Demo today ?Colloids Hydrophilic and Hydrophobic Colloids Focus on colloids in water. "Water loving" colloids: hydrophilic. "Water hating" colloids: hydrophobic. Molecules arrange themselves so that hydrophobic portions are oriented towards

Ohio State - CHEM - 122

Quiz #4 Next Week (Feb 12-16)Covers sections 14.5-14.7During lectures next week, we will complete ALL OF Chapter 15 and parts of Chapter 16! The Second Midquarter Exam will cover Chapters 14, 15, and 16.1-16.3Week six, a continuation ofChapter

Ohio State - CHEM - 122

Quiz #4 Next Week (Feb 12-16)Covers sections 14.5-14.7During lectures next week, we will complete ALL OF Chapter 15 and parts of Chapter 16! The Second Midquarter Exam will cover Chapters 14, 15, and 16.1-16.3Week six, a continuation ofChapter

Ohio State - CHEM - 122

LAB INSTRUCTORLOCATION170 - 209 W.18TH AVE. 170 - 209 W.18TH AVE. 250 KNOWLTON HALL 250 KNOWLTON HALL 250 KNOWLTON HALL 250 KNOWLTON HALL 103 KOTTMAN HALL 103 KOTTMAN HALL 103 KOTTMAN HALL 103 KOTTMAN HALL 1180 POSTLE HALL 1180 POSTLE HALL 1180 PO

Ohio State - CHEM - 125

Ohio State - CHEM - 122

16.1 16.2Acids and Bases: A Brief Review Bronsted-Lowry Acids and BasesH+ in water, Proton-transfer, Conjugate acids and bases, Relative strengthsQuiz number 5 will be given in recitation next week, Feb 26-Mar 2 on the first part of Chapter 16,

Ohio State - CHEM - 122

Quiz number 5 will be given in recitation next week, Feb 26-Mar 2 on the first part of Chapter 16, to be covered in lectures this week.16.1 16.216.3 16.4Acids and Bases: A Brief Review Bronsted-Lowry Acids and BasesH+ in water, Proton-transfer,

Ohio State - CHEM - 122

Makeup Midquarter Exams Wed., Mar 7 5:30-7:20 pm 1000 McPherson You MUST Sign up in 100 CE Please do so as soon as possible, but no later than Friday, Mar 2. Final Exams for Chem 122 - Mathews 2:30 Class: Thursday, Mar. 15 at 1:30 in (TBA) 6:30 Class

Ohio State - CHEM - 122

Makeup Midquarter Exams Wed., Mar 7 5:30-7:30 pm 1000 McPherson You MUST have Signed up in 100 CEChapter 17 17.1 17.2Additional Aspects of Aqueous Equilibria17.3Final Exams for Chem 122 - Mathews 2:30 Class: Thursday, Mar. 15 at 1:30 (TBA) 6:

Ohio State - CHEM - 211

Analytical Chemistry Chemistry 211 Quantitative AnalysisLecturers: Dr. Allen (first-half) (firstDr. Gustafson (second-half) (secondDr. Allen's Office: Room 3105 in Newman & Wolfrom (100 W. 18th Ave) My website will be used for distribution of some m

Ohio State - CHEM - 211

Practice Midterm I, Problem #7: one way to do this problem is. AgsS=2Ag+ + S2S2- + H2O= HSHS- + H2O= H2S + OHH2O= H+ + OHSolve/Write out all Ks: Ksp= 6 x 10-50 Kw=10-14 Kb1=8.3 Kb2=1.8 x 10-7 MB: [Ag+] = [S2-] + [HS-] + [H2S] CB: [Ag+] + [H+] = 2 [S

Ohio State - CHEM - 211

QUANTITATIVE CHEMICAL ANALYSIS FOR BIOLOGICAL AND MEDICINAL SCIENCES Chemistry 211 Summer Quarter 2005 Lecture Syllabus Lecturers: Heather C. Allen, 3105 NW, allen.697@osu.edu (June 20 to July 22) Terry L. Gustafson, 0103 NW, gustafson.5@osu.edu (Jul

Ohio State - CHEM - 211

KEY (tables were provided; Harvey tables) Partial Credit was given on all problems if deemed appropriate. Sig figs were checked, typically worth 1-2 points depending on the problem. As stated in class many times, if one did not state the assumptions

Ohio State - CHEM - 211

Name_Practice Midterm IChemistry 211 1. (30 points) An adrenal cell has about 2.5 x 104 vesicles that contain epinephrine. a. An entire cell has ~ 150 fmol (f = femto = 10-15) of epinephrine. How many amol (a = atto = 10-18) of epinephrine are in

Ohio State - CHEM - 211

Chemistry 211: Quiz worth 20 points total KEY - Quiz 1 (Take Home); June 29th, 2005 Due July 1st, 2005, before 8:30am (BEFORE class)A few notes: You must list the steps that you went through to solve each problem. (be sure to conduct all necessary s

Ohio State - CHEM - 211

Name_ Coworkers_ Chemistry 211 Quiz 2 (Take Home); July 13th, 2005 Due July 15th, 2005, before 8:30am (BEFORE class) 1. Calculate the pH of a 0.011030 M NaCH3COO (sodium acetate) solution. The pKa of acetic acid (CH3COOH) is 4.7570. Report the pH wit

Ohio State - CHEM - 211

Copyright 2000 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.Copyright 2000 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.Example of a Gaussian distributionCopyright 2000 Th

Ohio State - CHEM - 211

PolyproticsAcid speciation as a function of pHsome terms defined"TOTA" the total amount of the acid ATOTAHAA" i" the fraction of CHA (TOTA) that has lost i protonsHA0"0": zero protons lostTOTA A TOTA1"1": one proton los

Ohio State - CHEM - 211

Chemical EquilibriumTo Solve Multiple Equilibria Problems: 1. Write down the relevant chemical reactions 2. Write the "charge balance" equation a. Magnitude of charge = # in front of the species 3. Write the "mass balance" equation (1 or more) a. If

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

Ohio State - CHEM - 125

I will make the following suggestions for how you can do well in this course. 1) will be covering that week before coming to lecture. it to get an idea of what we will be covering. try to understand it at that point but it will help you follow what I

Ohio State - CHEM - 221

Constants R = 8.314 J-K-1 -mol-1 N0 = 6.022 1023 mol-1 Related Information Quadratic Equation: if ax2 + bx + c = 0, then x= -b kB = 1.381 10-23 J-K-1 h = 6.626 10-34 J-s e = 1.1602 10-19 C c = 2.998 108 m-s-1 me = 9.11 10-31 kg -12 C2 N-1 m-2

Ohio State - CHEM - 221

QUANTITATIVE CHEMICAL ANALYSIS (revised - March 28, 2008)Chemistry 221 MWF, 8:30 AM, 1015 McPherson Laboratory Spring Quarter 2008 Instructor: Philip Grandinetti Office: 0044B McPherson Lab Phone: (614) 292-6818 Contact: www.grandinetti.org/Contact

Ohio State - CHEM - 221

Problem Set Chemistry 2211. Define absorption, absorbance, percent transmission, and transmittance. 2. Define absorptivity and molar absorptivity. 3. Describe radiation sources and detectors for the ultraviolet, visible, and infrared regions of the

Ohio State - CHEM - 221

Ohio State - CHEM - 520

Equationsax2 + bx + c = 0 P V = nRT PT = P+iandx=-b b2 - 4ac 2aQuadratic Equation Ideal Gas Law Dalton's law of partial pressuresPi (V - nb) = nRTan2 V2van der Waals equationZ =1+B C D + 2 + 3 + Vm Vm VmVirial Equation Viri

Ohio State - CHEM - 520

Chemistry 520 Midterm Exam, Winter Quarter 7:30 - 9:00 PM, 7 February 2008NAME Useful Constants R = 8.314 J-K-1 -mol-1 N0 = 6.022 1023 mol-1 1 J = 1 kg m2 s-2 kB = 1.381 10-23 J-K-1 -12 C2 N-1 m-2 0 = 8.854 10 1 amu = 1.661 10-27 kg e = 1.1602

Ohio State - CHEM - 520

Ohio State - CHEM - 520

Chemistry 520 Winter Quarter 2008 Take Home Quiz 1 This quiz is due no later than 4 pm on Wednesday, Jan. 16, 2008 in room 0048 McPherson lab. Submit your answers on single sided paper. 1. A system receives 50 J of electrical energy and delivers 150