Documents about General Chemistry Lab
In class notes for August 29, 2007
Vanderbilt, CHEM 102a
Excerpt: ... p appointments with professor List. For help with Gen. Chem, or Gen. Chem. Lab, see TAs in their room (SC 5212). No Chem Recitation this week! Notes left for General Chemistry Lab 104A 1st day of class bring Lab manual Duplicate notebook (lab notebook) Safety goggles No shorts or sandals in the lab Have procedure work, experiment #1 written in duplicate book. Do pre-lab assignment. ...
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TLC_2008
Monmouth, CE 112
Excerpt: ... V108 THIN LAYER CHROMATOGRAPHY OBJECTIVE: Students will learn the basic principles of chromatography and use them to identify the components of an unknown dye mixture through the use of Thin Layer Chromatography (TLC). INTRODUCTION In this experimen ...
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MyMajor
UCSD, CSE 17
Excerpt: ... on the human body. Education UCSD Muir College Campus Experience Organic Chemistry Lab General Chemistry Lab Projects Participated in Psychological experiments Lab work based on mice 1 BrainImages.com ...
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105
University of Illinois, Urbana Champaign, CHEM 105
Excerpt: ... Course Schedule - Summer 2005 Chemistry 105 General Chemistry Lab II Credit: 1 hours. (CHEM 106) Laboratory studies to accompany CHEM 104. Prerequisite: CHEM 102 and 103; credit or concurrent registration in CHEM 104 is required. This course satisfies the General Education Criteria for a Physical Sciences course. CHEM 105 is the laboratory course that accompanies CHEM 104. Students may not receive credit for both CHEM 105 and CHEM 205. Engineering students must obtain a dean's approval to drop this course after the second week of instruction. CRN 30829 Type laboratory Section 21 Time 09:00 AM - 11:50 AM Days TR Location room 101 Chemistry Annex Instructor Hummel, T 30829: Physical Sciences course.Meets 13-Jun-05 - 04-Aug-05. Page 1 - Chemistry, Summer 2005 ...
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105
University of Illinois, Urbana Champaign, CHEM 105
Excerpt: ... Course Schedule - Summer 2008 Chemistry 105 General Chemistry Lab II credit: 1 hours. Laboratory studies to accompany CHEM 104. Prerequisite: CHEM 102 and CHEM 103; credit or concurrent registration in CHEM 104 is required. This course satisfies the General Education Criteria for a Physical Sciences course. CHEM 105 is the laboratory course that accompanies CHEM 104. Students may not receive credit for both CHEM 105 and CHEM 205. Engineering students must obtain a dean's approval to drop this course after the second week of instruction. CHEM 102 and CHEM 103 are approved for General Education credit only as a sequence. Both courses must be completed to receive Natural Science and Technology credit. CRN 30829 Type laboratory Section 21 Time 09:00 AM - 11:50 AM Days TR Location room 101 Chemistry Annex Instructor Hummel, T 30829: Physical Sciences course.Meets 09-Jun-08 - 31-Jul-08. Page 1 - Chemistry, Summer 2008 ...
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ml1dataB
Winthrop, CHEM 107
Excerpt: ... CHEM 107 General Chemistry Lab I Molecular Modeling Lab I: Chemical Bonding and Molecular Modeling B. Coordinate Driving and Potential Energy Molecule 1 Formula Molecule 2 Energy (kJ/mol) at Minimum Bond Distance at Minimum () Energy (kJ/mol) at 3.0 Bond Energy (kJ/mol) *Attach your two potential energy plots to your report. Answer the following questions: 1. What are the 3 types of electrostatic interactions present in all molecules? 2. Given the 3 types of interactions, explain why atoms in molecules are specific distances apart. 3. From your potential energy curve, why does the energy increase sharply at short bond distances? 4. From your potential energy curve, explain why the observed energy changes occur as the bond distance is increased. 5. Compare the bond distances and bond dissociation energies of the two molecules being studied. Explain the differences. ...
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4581
Pittsburgh, UPJ 20782
Excerpt: ... Chemistry Minor - 23 - 24 Credits General Requirement Chem 0111 Chem 0112 Chem 0113 Chem 0114 General Chemistry 1 General Chemistry 2 General Chem Lab 1 General Chem Lab 2 4 4 1 1 Organic Requirement Chem 0231 Chem 0232 Chem 0233 Chem 0234 Organic C ...
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150LSyllabusFall2008
MN State, CHEM 150
Excerpt: ... Chemistry 150L: Fall 2008 Asoka Marasinghe 407E Hagen Hall Telephone: 477-2277 asoka@mnstate.edu Required Text and Materials: 1. Safety Goggles 2. Experiments for General Chemistry Lab I: Fall 2008 _Lab Manual 3. Laboratory Notebook (Book store) 4. 3 1/2 IBM formatted disk (minimum) Chemistry 150L General Chemistry Lab oratory I Schedule of Experiments Fall 2008 Week 9/2-9/4 9/9-9/11 9/16-9/18 9/23-9/25 9/30-10/2 10/7-10/9 10/14-10/16 10/21-10/23 10/28-10/30 11/4-11/6 11/11-11/13 11/18-11/20 11/25-11/27 12/2-12/24 Ground Rules 1. Attendance: Laboratory attendance is mandatory. In the event of an absence, you will receive zero points for that experiment. NOTE: Some data analysis will be required outside of the scheduled laboratory time. 2. Lab Hand-ins: For some labs indicated above, the completion of the laboratory entails the completion of the hand in. Your lab grade depends on attendance and the quality of your responses to the hand-in submission. Experiment Safety Lecture I Safety Lecture II The ...
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Almost_Everything
Bryn Mawr, CHEM 103
Excerpt: ... ALMOST EVERYTHING YOU NEED TO KNOW ABOUT GENERAL CHEMISTRY LAB ORATORY Announcements are occasionally sent to the entire class using BMC Blackboard email addresses. Please check your email frequently. Laboratory Course Web Page General Chemistry Lab Coordinator www.brynmawr.edu/Acads/Chem/Chem101 Krynn D. Lukacs Room 184 Park Science Center E-Mail: klukacs@brynmawr.edu Phone: 526-5109 General You will attend laboratory once a week during your assigned lab period (M/Tu/W/Th from 1-4 or Tu/Th from 10-1). The class begins with a short lab lecture held in either Room 180 or 278, and all lab work is performed in Room 182. While in the lab, you will be supervised by a teaching assistant and Dr. Lukacs. Most students say that lab requires an additional 3 hours per week to write reports and to prepare for the upcoming experiment. Office Hours The best time to see Dr. Lukacs is when she's supervising lab (she is certain to be in the office or next door in the lab then), but you are welcome to take a chance and drop ...
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ml1dataA
Winthrop, CHEM 107
Excerpt: ... Name:_ CHEM 107 General Chemistry Lab I Molecular Modeling Lab I: Chemical Bonding and Molecular Modeling A. Geometry Optimization, Electron Density, and Electrostatic Potential CHEM 107 Molecule 1 Molecule 2 Formula Lewis Structure (label bond distances and angles) Energy (kJ/mol) Dipole Moment (debyes) Redraw molecule with Dipole Vector *Attach Electrostatic Potential Plots for each molecule with positive and negative regions labeled, and the dipole vector. ...
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Ex2SampleQs
UMass (Amherst), CHEM 112
Excerpt: ... ntration of iodide ion is increased from 0.05 M to 0.25 M the reaction rate will increase by a factor of _ The kinetics of this reaction were studied in general chemistry lab and the following data were obtained: Decomposition of H2O2 2.50 2.00 1.50 1.00 0.50 0.00 0 500 1000 1500 t (seconds) 2000 2500 3000 Time (sec) [H2O2] (M) 1 0 2.32 2 400 1.72 3 800 1.30 4 1200 0.98 5 2400 0.39 26. The instantaneous rate at 400 seconds is _ . 27. How can you plot the data above to demonstrate the reaction is first order in [H2O2] ? 28. On this plot the rate constant = _ (do not calculate) Page 5 14. Phenyl acetate reacts in water to make acetic acid. Use the half-life method to determine if this reaction is 0th, 1st, or 2nd order. (Be sure to show your work) CH3COOC6H5 (aq) + H2O (l) -> CH3COOH (aq) + C6H5OH (aq) Time (sec) 0 15.0 30.0 45.0 60.0 75.0 90.0 (Circle one) [CH3COOC6H5] (M) 0.64 0.42 0.31 0.23 0.17 0.12 0.085 A. Zeroth B. First C. S ...
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Chem 2 Lab 1
Western Michigan, CHEM 113
Excerpt: ... information please refer to "What's My Name, Dr. Schreiber's General Chemistry Lab II - Chem 1130 Spring 2008 Home Page, http:/homepages.wmich.edu/%7Edschreib/Courses/Chem1130/chem1130.htm. OBSERVATIONS, RESULT, AND DATA SHEETS Known Matrix NaOH NaOH AgNO3 Brown AgNO3 KCLO3 NaBr Cream KCLO3 NaBr NH4CL Na2SO4 white BaCl2 odoreggs white KIO3 N/A Na2S NH4CL Odor white Na2SO4 brown BaCl2 Percip white KIO3 white Na2S black *please note that all empty boxes indicate reactions that did not occur Unknown Substances Column1 NaOH AgNO3 KCLO3 NaBr NH4CL Na2SO4 BaCl2 KIO3 Na2S S1 S2 S3 S4 S5 S6 white cream color white odor white Results S1 S2 S3 S4 S5 S6 Known Sol. NH4Cl NaCl Na2S Na2S Na2S Na2S Unknown Solutions Properties Compound Formed white odor cream white black white Identified Solutions S1 = AgNO3 S2 =AgNO3 S3 = NaBr S4 = NH4CL S5 =Na2S S6 =6BaCl2 Reactions 1 2 3 4 5 6 7 8 9 10 11 12 Observed Reactions Solution 1 Solution 2 Compound Formed NaOH AgNO3 NaOH NH4CL NaOH BaCl2 AgNO3 NaB ...
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Lab Final Practice #2
Tennessee, CHEM 130
Excerpt: ... order kinetics. 21. In a galvanic cell, what is Ecell equal to (the formula)? 22. Do electrons flow from or to the cathode? 23. Name the chemical used to wet the salt bridge. 24. Write the formula for Co(II), with coordination number = 6, attached to ammonia molecule(s), water molecule(s), and one ethylenediamine molecule. This coordination sphere is stabilized by chloride ion(s). 25. A student hardly mixed a salt sample, when he added it to cyclohexane. Upon cooling the mixture, what happens to the value of Tf? 26. Complete and balance: a. Fe+3(aq) + b. AgCl(s) + I-(aq) NH3(aq) 27. An unknown liquid is believed to be pure water or salt water. What general chemistry lab principle (name) could be used to determine the identity of the unknown? 28. About how long would it take for a radioactive substance (half life = 15.2 days) to become non-radioactive? 29. Carbon dioxide is the gas produced when an acide reacts with a (name) _ ion. The formula of the ion is _ ...
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Cryoscopic Determination of Molecular Weight
Northeastern, CHM 214
Excerpt: ... Michael Chelala General Chemistry Lab Friday 8:00 A.M. Annie He Cryoscopic Determination of Molecular Weight Introduction In this experiment, we will prepare a solution of an unknown material in the solvent Naphthalene very carefully by weight, and will then measure the change in freezing point of this solution compared to the freezing point of pure Naphthalene. From the change in freezing point, and from the constant, Kf, for the Naphthalene solvent, we will be able to calculate the actual molality of your solution. By knowing the makeup of the solution by weight, we will be able to calculate the molecular weight of the unknown material. Chemical Responsibility As always, goggles need to be worn at all times during the lab. Be sure to dispose of all solutions in the proper containers. Poor the unknown with the Naphthalene in the waste container at the end of the lab and bring your test tube to the stock room to be replaced. Report Sheet Attached Sample Calculations Attached Discussion of Results After comple ...
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Solutions & Dilutions Oct 2008
Western Washington, CHEM 121
Excerpt: ... Chemistry 121 SOLUTIONS & DILUTIONS INTRODUCTION In this experiment you will build upon the volume measurement techniques learned in the Introduction to Measurements lab. You will use a pipet to make dilute (low concentration) solutions of an ordinary household chemical (a food dye) and check their concentrations with a colorimeter, an instrument used for detecting light. The ability to accurately measure volumes and prepare solutions is an important laboratory skill. You will use the Vernier LabPro interface and software along with the colorimeter to measure the solution absorbances and generate a data plot. The LabPro system can be used for a variety of functions, and you will use it regularly throughout the General Chemistry lab s. Often solutions of low concentration are made by diluting a more concentrated solution. This concentrated solution is called a stock solution. For this experiment the stock solution is a mixture of red food dye and DI water. The concentration of this stock solution is assigned at ...
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IntroBkgrnd
Colorado, CHEM 4581
Excerpt: ... , say, a voltage level from an op-amp. 4) Microcontrollers Microcontollers are single chip computers that have interfacing capabilities built into the chip itself and often form the heart of "smart" instruments. Examples include the digital pH meters used in the general chemistry lab s, digital analytical balances, and the digital thermometers used in the physical chemistry lab for combustion calorimetry. These single chip computers are programmed using a PC to develop and compile the software which is then transferred to the chip. The microcontroller's program memory is static (retains the program even when power is removed from the chip) and automatically starts the program when power is applied. 5) Putting it all together Take all the pieces (sensor, signal conditioning, analog to digital conversion, microcontroller) and make a simple instrument. IntroBkgrnd.doc 6 10/24/07 Computer Interfacing While we won't be doing it as part of the electronics lab, connecting a measuring device to a personal compute ...
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1M_Error_Worksheet
UCSC, CHEM 1
Excerpt: ... e best fit line, the ideal gas law, and the pressure. 3. A piston was held in a water bath at 48.6C and the gas was compressed by the piston. V (mL) The following pressures were measured 1/V (1/L) at each volume: P (atm) 476.8 1.06 403.7 1.22 327.6 1.56 277.3 1.85 223.7 2.13 The ideal gas law can be rearranged in the following way to allow this data to form a line: 1 PV = nRT P = nRT , V where nRT = slope and y - intercept = 0 a. Plot pressure vs. 1/volume. b. Determine slope of line c. Find number of moles of gas in the piston using the slope of the best fit line, the ideal gas law, and the temperature. Example Titles for a General Chemistry Lab Name_ Section_TA_ Good science writing conveys appropriate information concisely and clearly. Information should also be given in the correct section of a scientific paper or report. This exercise is an introduction to the first step in science writing developing a good title that accurately reflects the conte ...
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vib-modes-05
Colby, CH 332
Excerpt: ... CH332 S'05 Normal mode analysis and prediction of IR/Raman spectra We will work on the PCs in the Schupf lab this week to answer the following questions. In addition, you should work through the standard addition problem 1-11 on p.19 in Skoog (Prelab ...
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sm8f08safetylab
University of Texas, OASF 08
Excerpt: ... chemicals). Always stand (do not sit) when working with chemicals your ability to move out of danger is easier should a spill occur. Wearing of Safety Goggles Because this is not your "average" laboratory (such as general chemistry lab s, bio labs, etc.) this requirement is on a case-by-case basis Cleanliness and safeness of work area You will always be expected to maintain a clean and uncluttered work area. Be sure to clean and return all materials to the appropriate storage space before leaving the lab. If left unclean and/or cluttered, you will be required to return to the lab on your own time and clean up what you left behind. Handling & disposal of chemicals Again, seeing that this is not your "average" laboratory and because not everyone will be dealing with chemicals, the handling of chemicals will be briefly discussed during the safety briefing but more detailed on a case-by-case basis. If you have any questions, ask your Instructor! Understanding Prohibited items in the laboratory Smoking i ...
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Chem_128lab_W09_syl
Cal Poly, CHEM 128
Excerpt: ... Dr. Derek Gragson Office: 25-130 Phone: 756-7154 e-mail: dgragson@calpoly.edu web page: chemweb.calpoly.edu/dgragson Office Hours: T, R: 10-11; R 12-2; F 11-12 Course Information Lab Manual - "Laboratory Manual for Chem 128 General Chemistry" Lab No ...
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Lab Final Practice #2 KEY
Tennessee, CHEM 130
Excerpt: ... 2Fe+2 + I2 2NH3(aq) [Ag(NH3)2]+Cl- 27. An unknown liquid is believed to be pure water or salt water. What general chemistry lab principle (name) could be used to determine the identity of the unknown? Freezing point depression 28. About how long would it take for a radioactive substance (half life = 15.2 days) to become non-radioactive? 150 days 29. Carbon dioxide is the gas produced when an acide reacts with a (name) carbonate ion. The formula of the ion is CO3230. If you decrease the concentration of silver ions in the following reaction, Ag+(aq) + KCl(aq) AgCl(s) + K+(aq), the equilibrium would shift to the left 31. True-False false Buffers overreact when small amounts of an acid or a base is added. This means that the pH value of the solution jumps from two to seven in one second. 32. Susan wants to determine the difference between the reactivity of the three metals, A, B, and C. She knows that they must be Au, Mg, and Ni. With HCl, their reactivities are Mg>Ni>Au. What is the identity of A, ...
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