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3: Chapter Stoichiometry o o o o o o o o Atomic Mass Moles and Molar Mass Percent Composition of Compounds Empirical & Molecular Formulas of Compounds Writing and Balancing Chemical Equations Stoichiometry Limiting Reactants Reaction Yields Mass Spectrometer (Figure 3.1) Mass Spectrometer Signal for Neon (Figure 3.2) Example 1 The element rhenium (Re) has only two naturally occurring isotopes, 185Re and 187 Re, with an average atomic mass of 186.207 amu. The atomic mass of 185Re is 184.953 amu and the atomic mass of 187 Re is 186.956 amu. Find the natural abundance of each isotope. Answer: 62.60% 187 Re and 37.40% 185 Re Example 2 What is the mass of 1.00 mole of methane, CH4? Answer: 16.0 g Example 3 How many moles of K2SO4 are present in 10.0 g of this substance? Answer: 0.0574 moles of K2SO4 Example 4 How many moles of O atoms are present in 5.40 g of H2O2? How many O atoms is that? Answer: 0.318 moles of O; 1.91x1023 atoms of O Example 5 What is the mass of 2.75 moles of H3PO4? Answer: 269 g Example 6 What is the mass of one helium atom, on average? Answer: 6.647x10-24 g Equipment for Combustion Analysis of a Compound (Figure 3.5) Example 7 Find the percent composition of acetic acid. Answer: 6.71% H, 40.00% C, 53.29% O Example 8 An unknown compound of C, H, and O is analyzed by combustion. A sample weighing 10.68 mg was burned completely, producing 16.01 mg of CO2 and 4.37 mg of H2O. Find the percent composition of this compound. Answer: 40.92% C, 54.50% O, 4.58% H Example 9 An unknown compound of C, H, and O is analyzed by combustion and found to contain 53.3% O, 40.0% C, and 6.72% H by mass. What is the empirical formula of this substance? Answer: CH2O Example 10 When 0.847 g of isobutylene (a hydrocarbon) is burned completely, 2.657 g of CO2 and 1.089 g of H2O were produced. Find the empirical formula of isobutylene. Answer: CH2 Example 11 If the empirical formula of an unknown hydrocarbon is found to be CH and the molecular weight is 78.11 amu, what is the molecular formula? Answer: C6H6 Example Balance 12 the following chemical equations by inspection: CH4 (g) + O2 (g) CO2 (g) + C2H6 (g) + O2 (g) CO2 (g) + H2O (g) H2O (g) Na3PO4 (aq) + Ba(NO3)2 (aq) NaNO3 (aq) + Ba3(PO4)2 (s) Example 13 Given the following balanced equation: Fe2O3 (s) + 3 CO (g) 2 Fe (s) + 3 CO2 (g) How many grams of iron can be produced from 2.0 kg of Fe2O3 reacting with excess CO? Answer: 1.4 kg Fe Example 14 Given the following balanced equation: CO (g) + 2 H2 (g) CH3OH(g) If 35.4 g of CO are combined with 10.2 g of H2, how many grams of CH3OH can be formed? Answer: 40.5 g of CH3OH are produced Example 15 Aspirin, C9H8O4, is synthesized by heating salicylic acid, C7H6O3, with acetic anhydride, C4H6O3. If 2.00 g of salicylic acid is heated with 4.00 g of acetic anhydride, what mass of aspirin can be produced and what mass of which reactant is leftover? Note that the only other reaction product is acetic acid, HC2H3O2. Answer: 2.61 g of aspirin is produced and 2.52 g of acetic anhydride is leftover. Example 16 If 10.0 g of carbon disulfide are combined with 10.0 g of chlorine, what mass of carbon tetrachloride is produced and what mass of which reactant is leftover? The balanced equation for the reaction is: CS2 (g) + 3 Cl2 (g) CCl4 (l) + S2Cl2 (g) Answer: 7.23 g of CCl4 produced and 6.4 g of CS2 leftover Example 17 If 25.0 g of NaBr and 25.0 g of Cl2 are combined, 12.1 g of NaCl are produced. What is the percent yield for this reaction? NaBr(aq) + Cl2(g) Br2(l) + NaCl(aq) [unbalanced] Answer: 85.2% Example 18 CS2 (g) + 3 O2 (g) CO2 (g) + 2 SO2 (g) When 15.0 g of CS2 and 35.0 g of O2 are mixed, they react with a 78.6% yield. What mass of SO2 is produced? Answer: 19.8 g of SO2 Example 19 Mercury and bromine are both liquid elements. They react with each other to form mercury (II) bromide and no other products. What mass of mercury (II) bromide will be produced from the reaction of 5.00 mL of mercury with 5.00 mL of bromine assuming an 82.2% yield? The density of mercury is 13.5 g/mL and the density of bromine is 3.2 g/mL. Answer: 29.7 g HgBr2
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Santa Monica >> CHEM >> 22 (Spring, 2008)
Name: Lab Radical Chlorination of 1-Chlorobutane (Expt 8.1) Results Product Theoretical Reactivity Per Hydrogen Cl Theoretical % of Product Mixture (*) Rel. Retn Time (#), minutes Experimental % of Product Mixture(*) Experimental Reactivity per...
Santa Monica >> CHEM >> 24 (Spring, 2008)
Name: Lab Radical Chlorination of 1-Chlorobutane (Expt 8.1) Results Product Theoretical Reactivity Per Hydrogen Cl Theoretical % of Product Mixture (*) Rel. Retn Time (#), minutes Experimental % of Product Mixture(*) Experimental Reactivity per...
Santa Monica >> CHEM >> 21 (Spring, 2008)
Electrophilic Aromatic Substitution: Effect of Substituents A C T I V A T I N G Most Activating NH2, NHR, NR2, OH, OR O O Strongly Activating Moderately Activating o / p D I R E C T O R S m D I R E C T O R S NHCR, OCR Weakly Activating R, Ar, CH=C...
Santa Monica >> CHEM >> 22 (Spring, 2008)
Electrophilic Aromatic Substitution: Effect of Substituents A C T I V A T I N G Most Activating NH2, NHR, NR2, OH, OR O O Strongly Activating Moderately Activating o / p D I R E C T O R S m D I R E C T O R S NHCR, OCR Weakly Activating R, Ar, CH=C...
Santa Monica >> CHEM >> 24 (Spring, 2008)
Electrophilic Aromatic Substitution: Effect of Substituents A C T I V A T I N G Most Activating NH2, NHR, NR2, OH, OR O O Strongly Activating Moderately Activating o / p D I R E C T O R S m D I R E C T O R S NHCR, OCR Weakly Activating R, Ar, CH=C...
Santa Monica >> CHEM >> 21 (Spring, 2008)
Name: Afternoon Lab Isolation of Limonene From Orange Peels (6.2M) Results Show calculations for the following, where appropriate, in your notebook. Mass of orange peels used: % Recovery of limonene from peels: Temperature (range?) during distillat...
Santa Monica >> CHEM >> 22 (Spring, 2008)
Name: Afternoon Lab Isolation of Limonene From Orange Peels (6.2M) Results Show calculations for the following, where appropriate, in your notebook. Mass of orange peels used: % Recovery of limonene from peels: Temperature (range?) during distillat...
Santa Monica >> CHEM >> 24 (Spring, 2008)
Name: Afternoon Lab Isolation of Limonene From Orange Peels (6.2M) Results Show calculations for the following, where appropriate, in your notebook. Mass of orange peels used: % Recovery of limonene from peels: Temperature (range?) during distillat...
Santa Monica >> CHEM >> 22 (Spring, 2008)
Name Lab: E2 Reaction of 2-Bromoheptane (Expt 10) Results: Base = Sodium Methoxide - Data Source: Elimination Product Retention Time, minutes (*) Percent of Product Mixture Base = Potassium t-Butoxide - Data Source: Elimination Product Retention T...
Santa Monica >> CHEM >> 24 (Spring, 2008)
Name Lab: E2 Reaction of 2-Bromoheptane (Expt 10) Results: Base = Sodium Methoxide - Data Source: Elimination Product Retention Time, minutes (*) Percent of Product Mixture Base = Potassium t-Butoxide - Data Source: Elimination Product Retention T...
Santa Monica >> CS >> 3 (Summer, 2008)
DNS the protocol David Morgan David Morgan 2003 DNS as a language spoken between pairs of programs a dns client program, e.g., the resolver an dns server program, e.g., BIND theyre written specially to speak it discussing server giving info ...
Santa Monica >> CS >> 3 (Summer, 2008)
Linux Nuts and Bolts David Morgan David Morgan 2004 At the command line Cursor control type to insert del/ctrl-d to delete home/end for endpoints Filename completion tab after initial characters Command repetition uparrow (like MS doske...
Santa Monica >> CS >> 3 (Summer, 2008)
Using the DHCP protocol for a denial-of-service attack David Morgan Denial of service stategy against a DHCP server server issues IP addresses per MAC addresses administers a fixed pool of IPs stops issuing when it runs out perhaps we can artificia...
Santa Monica >> CS >> 3 (Summer, 2008)
pre-install it ain\'t what you don\'t know that hurts you, it\'s what you think you know, that just ain\'t so 1 So what do you have? It\'s a good idea before running any OS installer to know what you\'re installing it on RedHat install docs reference ...
Santa Monica >> CS >> 3 (Summer, 2008)
Linux Networking: interfaces and routing David Morgan David Morgan 2003-2007 Configuring networking Concepts Manual configuration Automating it at bootup David Morgan 2003-2007 1 Concepts Packets Addresses Interfaces Routes David Morgan 200...
Shasta College >> PHIL >> 7 (Fall, 2008)
Win-Win Negotiation Process Six Step Process Six Step Process Step 1Identify your problem and unmet needs Step 2Make a date Step 3Describe your problem and needs Use an assertive message You could choose to describe behaviors explain conseque...
Shasta College >> PHIL >> 8 (Fall, 2008)
Win-Win Negotiation Process Six Step Process Six Step Process Step 1Identify your problem and unmet needs Step 2Make a date Step 3Describe your problem and needs Use an assertive message You could choose to describe behaviors explain conseque...
Sierra >> AT >> 59 (Fall, 2008)
...
Sierra >> AT >> 59 (Fall, 2008)
by Russell Krick Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois Goodheart-Willcox Co., Inc. Goodheart-Willcox Co., Inc. Cooling system functions Cooling system operation Cooling system types Basic cooling system Closed an...
Sierra >> AT >> 59 (Fall, 2008)
by Russell Krick Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois Goodheart-Willcox Co., Inc. Goodheart-Willcox Co., Inc. (8 Topics) Basic transmission parts Purpose of a manual transmission Gear fundamentals Manual transmis...
Sierra >> ENGLISH >> 42 (Fall, 2008)
EXTRA CREDIT REVIEWS OF ASTRONOMY 10 VIDEOS PRESENTED IN LIBRARY For the actual dates that each week starts, see the General Schedule of Activities Week # 3 Title and Review \"Different Worlds\": Travel back in time and space to witness the awesome fo...
Sierra >> ENGLISH >> 50 (Fall, 2008)
EXTRA CREDIT REVIEWS OF ASTRONOMY 10 VIDEOS PRESENTED IN LIBRARY For the actual dates that each week starts, see the General Schedule of Activities Week # 3 Title and Review \"Different Worlds\": Travel back in time and space to witness the awesome fo...
Sierra >> ENGLISH >> 42 (Fall, 2008)
SCORE (5 pts max) ASTRONOMY 10 THIRD HOUR SESSION F ACTIVITY: Introduction to the Sky Gazers Almanac NAME DATE ID# 1. What time will _ rise on _? 2. What time does _ set on _? 3. On what date does __ transit at _? 4. What time does the Sun rise...
Sierra >> ENGLISH >> 50 (Fall, 2008)
SCORE (5 pts max) ASTRONOMY 10 THIRD HOUR SESSION F ACTIVITY: Introduction to the Sky Gazers Almanac NAME DATE ID# 1. What time will _ rise on _? 2. What time does _ set on _? 3. On what date does __ transit at _? 4. What time does the Sun rise...
Sierra >> ENGLISH >> 42 (Fall, 2008)
SCORE (5 pts max) ASTRONOMY 10 THIRD HOUR SESSION F ACTIVITY: Introduction to the Sky Gazers Almanac NAME DATE ID# 1. What time will _ rise on _? 2. What time does _ set on _? 3. On what date does __ transit at _? 4. What time does the Sun rise...
Sierra >> ENGLISH >> 50 (Fall, 2008)
SCORE (5 pts max) ASTRONOMY 10 THIRD HOUR SESSION F ACTIVITY: Introduction to the Sky Gazers Almanac NAME DATE ID# 1. What time will _ rise on _? 2. What time does _ set on _? 3. On what date does __ transit at _? 4. What time does the Sun rise...
Sierra >> ENGLISH >> 42 (Fall, 2008)
Using the Skygazer\'s Almanac Look at the front of your Skygazer\'s Almanac. You will notice that the dominant hourglass figure has days of the year running vertically and time of day running horizontally (actually, time of night from 5 pm to 7 am). No...
Sierra >> ENGLISH >> 50 (Fall, 2008)
Using the Skygazer\'s Almanac Look at the front of your Skygazer\'s Almanac. You will notice that the dominant hourglass figure has days of the year running vertically and time of day running horizontally (actually, time of night from 5 pm to 7 am). No...
Sierra >> ENGLISH >> 42 (Fall, 2008)
How to Use a Planisphere Introduction A planisphere is a type of star chart that can be set to show the location of objects in the sky for any given date and time. It is small, portable and easy to use, providing a very convenient tool for identifyin...
Sierra >> ENGLISH >> 50 (Fall, 2008)
How to Use a Planisphere Introduction A planisphere is a type of star chart that can be set to show the location of objects in the sky for any given date and time. It is small, portable and easy to use, providing a very convenient tool for identifyin...
Sierra >> ENGLISH >> 42 (Fall, 2008)
CLASSROOM EMERGENCY PROCEDURES ROCKLIN CAMPUS Faculty members are responsible for the safety and well-being of students during scheduled instructional activities. It is expected that each semester, faculty will notify their students of Sierra Colleg...
Sierra >> ENGLISH >> 50 (Fall, 2008)
CLASSROOM EMERGENCY PROCEDURES ROCKLIN CAMPUS Faculty members are responsible for the safety and well-being of students during scheduled instructional activities. It is expected that each semester, faculty will notify their students of Sierra Colleg...
Sierra >> ENGLISH >> 50 (Fall, 2008)
A Planetary Overview A Planetary Overview Comparative Planetology In this chapter we wish to look at the solar system as whole and compare the worlds to each other, seeking to understand their similarities and differences comparative planetology...
Sierra >> ENGLISH >> 50 (Fall, 2008)
Pick up 3rd hour stuff! q q 3rd hour stuff will first appear in the center of the room before lecture. It will then be moved to the box labeled 3400 outside the planetarium s All 3rd hours will collect there until the end of the semester q q q Sc...
Sierra >> ENGLISH >> 50 (Fall, 2008)
SCORE (5 pts max) ASTRONOMY 2 THIRD HOUR SESSION L ACTIVITY: Other Tools of Astronomy: Planispheres and Centerfolds Planispheres NAME DATE ID# 1. The planisphere rotates about the _?_ which is approximately in the location of the star _?_. 2. Whe...
Sierra >> ENGLISH >> 50 (Fall, 2008)
SCORE (5 pts max) ASTRONOMY 2 THIRD HOUR SESSION F VIDEO: The New Solar System NAME DATE ID# 1. The Sun is powered by the nuclear transformation of what element into what other element? 2. The steady stream of sub-atomic particles that are emitte...
Skyline College >> READ >> 864 (Fall, 2008)
THE WRITING PROCESS: PLANNING: A good early step in the writing process is planning. Access your writing situation by asking questions: Subject: Sources: Purpose: Audience: Is your subject worth writing about? How broadly can you cover the subject? D...
Skyline College >> READ >> 864 (Fall, 2008)
Writing Guideline #5: TIMED WRITING: In college and in life there will be occasions where you need to compose essays and written responses quickly and in a limited amount of time. Therefore, we will also be strengthening your timed essay writing abil...
Skyline College >> ESOL >> 841 (Fall, 2008)
Writing Guideline #1: PAPER TOPICS: All the writing you will be doing in this course is reading-based. This means that every essay you write will be a response to and analysis of the reading arguing a point of view about the reading. If you write an ...
Skyline College >> ESOL >> 841 (Fall, 2008)
Writing Guideline #13: THESIS STATEMENTS: The main point (claim) of an essay is often indicated in a single sentence called the thesis statement: A thesis statement is an arguable assertion that can be proven with evidence and opinions. Ask yoursel...
Solano Community College >> BUS >> 205 (Fall, 2008)
S = to the Sales Break-Even Point FC = Fixed Costs $25,000 VC = Variable Costs $45,000 R = Estimated Revenues $90,000 S = $25,000+ ( $45,000/ $90,000) x S S = $25,000 + (1/2) x S S - S = $25,000 Break Even Sales= $50,000 Fixed Costs Variable Costs E...
Solano Community College >> BUS >> 205 (Fall, 2008)
Name: _ Budgeting Exam Questions: 1. How can budgeting help a small business? BUS 205 2. Why is break-even analysis important for a business? Briefly explain how you would go about doing a break-even analysis for your business. Bus 205 Budgeting...
Sonoma >> FR >> 314 (Fall, 2008)
Alliance Franaise de Berkeley 2004 Woolsey Street, Berkeley CA 94703 / 0 Alliance Franaise de Berkeley Monday, January 5 to Saturday, February 28, 2009 New students are welcome in all levels. Class Schedule: Session I 2009 Monday, January 5 to Satu...
Sonoma >> ARTS >> 595 (Fall, 2008)
The Sonoma State University Music Department is proud to present the Atlantic Brass Quintet 2008 International Brass Quintet Seminar, June 8 to 12, 2008. Questions? email: brian.wilson@sonoma.edu Phone: 707.664.2468 Fax: 707.664.4332 sonoma state uni...
Sonoma >> MUS >> 199 (Fall, 2008)
The Sonoma State University Music Department is proud to present the Atlantic Brass Quintet 2008 International Brass Quintet Seminar, June 8 to 12, 2008. Questions? email: brian.wilson@sonoma.edu Phone: 707.664.2468 Fax: 707.664.4332 sonoma state uni...
Sonoma >> MUS >> 295 (Fall, 2008)
The Sonoma State University Music Department is proud to present the Atlantic Brass Quintet 2008 International Brass Quintet Seminar, June 8 to 12, 2008. Questions? email: brian.wilson@sonoma.edu Phone: 707.664.2468 Fax: 707.664.4332 sonoma state uni...
Sonoma >> MUS >> 395 (Fall, 2008)
The Sonoma State University Music Department is proud to present the Atlantic Brass Quintet 2008 International Brass Quintet Seminar, June 8 to 12, 2008. Questions? email: brian.wilson@sonoma.edu Phone: 707.664.2468 Fax: 707.664.4332 sonoma state uni...
Sonoma >> MUS >> 490 (Fall, 2008)
The Sonoma State University Music Department is proud to present the Atlantic Brass Quintet 2008 International Brass Quintet Seminar, June 8 to 12, 2008. Questions? email: brian.wilson@sonoma.edu Phone: 707.664.2468 Fax: 707.664.4332 sonoma state uni...
Sonoma >> MUS >> 491 (Fall, 2008)
The Sonoma State University Music Department is proud to present the Atlantic Brass Quintet 2008 International Brass Quintet Seminar, June 8 to 12, 2008. Questions? email: brian.wilson@sonoma.edu Phone: 707.664.2468 Fax: 707.664.4332 sonoma state uni...
Sonoma >> THAR >> 199 (Fall, 2008)
The Sonoma State University Music Department is proud to present the Atlantic Brass Quintet 2008 International Brass Quintet Seminar, June 8 to 12, 2008. Questions? email: brian.wilson@sonoma.edu Phone: 707.664.2468 Fax: 707.664.4332 sonoma state uni...
Sonoma >> MATH >> 261 (Fall, 2008)
How X-ray Experiments See Black Holes: Past, Present and Future Lynn Cominsky Sonoma State University Introduction q Galactic Black Holes: Mass Determination Spin Determination Flare from our Galactic center q Extra-galactic Black Holes: Spe...
Sonoma >> MATH >> 261 (Fall, 2008)
P214/Homework #9 - Due 4/21 by 5 PM Problems are from Tipler Chapter 25: Professor Lynn Cominsky (1) 8 The power dissipated in a resistor is P when the potential drop across it is V . If the voltage drop is increased to 2V (with no change in resist...
Sonoma >> MATH >> 261 (Fall, 2008)
Far Out Math! Using Slide Rules to Teach Logarithms Lynn Cominsky SSU/NASA Education and Public Outreach Program Director Michiel Ford GLAST Educator Ambassador Holton High School, KS National Aeronautics and Space Administration Space NASA ENTERP...
Sonoma >> MATH >> 261 (Fall, 2008)
Gamma-ray Astronomy (TheShortStory) The Big Picture q Whole sky glows Extreme environments Probes of the Universe CGRO/EGRET All Sky Map q q Early Gamma-ray Astronomy GammarayBursts VelaProgram:ABomborNotaBomb? Afewhundredevents,afewhundredtheor...
Sonoma >> MATH >> 261 (Fall, 2008)
After the Big Bang Prof. Lynn Cominsky, Dr. Phil Plait and Sarah Silva NASA E/PO at SSU Golden Age of Cosmology How did the Universe begin? Standard Big Bang theory Inflation Hubble Expansion What is the fate of the Universe? Observations ...
Sonoma >> MATH >> 430 (Fall, 2008)
Physics 430: Problem Set #9 Due Wednesday, May 7, 2008, 10:50 am (in class) Please read 4.1, 4.2. All problems are from David Griths: Introduction to Electrodynamics, 3rd Edition. 1. Page 155, Problem 3.34; 2. Page 163, Problem 4.4; 3. Page 169, P...
Sonoma >> CS >> 215 (Fall, 2008)
Sonoma State University Computer Science Department Policy on Collaboration You are encouraged to discuss course material with other students. Don\'t be shy about consulting with anyone, but please understand that you, and only you, bear the responsib...
Sonoma >> CS >> 215 (Fall, 2008)
Laboratory Exercise 13 (Intro to MFC) Topics: Microsoft Foundation Classes Goals: Upon successful completion of this lab you should be able to: 1. Write a simple winows program using the MFC Frame Window Class Related text sections: Chapters 1 - 5 (I...
Sonoma >> CS >> 215 (Fall, 2008)
Laboratory Exercise 5 (The STL) Topics: Class accessor functions STL (Standard Template Library) vector containers Goals: Upon successful completion of this lab you should be able to: 1. Declare and implement accessor functions 2. Use accessor functi...
Sonoma >> CS >> 215 (Fall, 2008)
Laboratory Exercise 2 (Algorithm Development) Topics: Code analysis Algorithm development Goals: Upon successful completion of this lab you should be able to: 1. Read a C+ program containing loops and decision statements 2. Read a C+ program containi...
Sonoma >> CS >> 460 (Fall, 2008)
Sonoma State University Computer Science Department CS460 Fall 2008 - Watts Project - Part 3 - Interpreter For this part of the project you are to write a symbol table generator and interpreter for the project statement programming language. Specif...
Sonoma >> NURS >> 525 (Fall, 2008)
Breast feeding: Its a Natural! Great Resource: La Leche League: http:/www.llli.org/ Breast feeding techniques There is a technique! 2-3 cms of areola in infants mouth Bottom lip out No dimpling in cheeks Nutritive Sucking Audible swallowing...
Sonoma >> NURS >> 822 (Fall, 2008)
BOARD OF REGISTERED NURSING P.O Box 944210, Sacramento, CA 94244-2100 P (916) 322-3350 | www.rn.ca.gov Ruth Ann Terry, MPH, RN, Executive Officer INSTRUCTIONS FOR APPLYING FOR A NURSE PRACTITIONER FURNISHING NUMBER Section 2836.3 of the Business and...
Sonoma >> PHYS >> 100 (Fall, 2008)
Physics 100: Problem Set #8 Department of Physics and Astronomy Sonoma State University Due Tuesday, Nov. 13, 2007, 9:20 am (in class) Please read chapter 11; All problems are from the text: Paul G. Hewitt, Conceptual Physics, 10th Edition; 1. Page...
Sonoma >> PHYS >> 325 (Fall, 2008)
Sonoma State University J. S. Tenn The Gamma Function The gamma function appears frequently in physics problems. Some knowledge of its properties is very useful in evaluating integrals. The definition is (z) 0 e -t t z-1 dt (1) Its most intere...
S.E. Louisiana >> CHEM >> 101 (Fall, 2008)
CLAB 123 Data Sheet Experiment 1 Trial 1 Name: Trial 2 gX ml X ml X ml X gX ml X gX ml X ml X ml X gX ml X Analog CX CX o CX o o Uncertainty X X X X X X How did you get uncertainty? Data Mass of empty beaker Initial burrette reading Volum...
S.E. Louisiana >> CHEM >> 101 (Fall, 2008)
Dr. Littles CHEM 123 Lab Lab #2 Prelab Questions Name: 1. What is the volume of a 4.60 cm long cylinder with a diameter of 2.52 cm? cm3 2. What is the volume of a cube with a density of 2.71 g/cm3 and a mass of 2.629 g? cm3 3. What is the length...
S.E. Louisiana >> CHEM >> 101 (Fall, 2008)
Southeastern Louisiana University - Dept of Chemistry and Physics (985-549-2159) PHYS 142-03 Elementary Physics Pursley Hall 128 Tuesdays, Thursdays 8:00 - 10:15 am Fall 2008 Instructor: Office: Phone: Email: Webpage: Office Hrs: Prerequisites: N...
S.E. Louisiana >> CHEM >> 101 (Fall, 2008)
CLAB 103 Midterm Review Dr. Little Fall 2008 Bring: scantron B, pencil, calculator Equations & Constants supplied: table of densities and specific heats periodic table h=6.63E-34 Js c=3.00E-8 m/s Vblock = l(w)(h) q=m(sh)t 6.2=MM(sh) E = h() c = () Ge...
S.E. Louisiana >> CHEM >> 101 (Fall, 2008)
CLAB 123 Data Sheet Unknown # _ Trial I Mass of flask Mass of flask + liquid Mass of liquid Volume of burette, FINAL Volume of burette, INITIAL Volume of liquid by burrette Density of liquid HI Density (mass + _)/(vol - _) Error = (HI D Actual calcul...
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