pyridinium hydrobromide perbromide type of stationary phase column length column temperature rate flow of the carrier gas List the 4 general factors that affect the separation obtained on a gas chromatograph What specific technique is used to collect/isolate your purified unknown compound at the end of the recrystallization experiment? suction filtration 14 of 22 4/16/12 9:15 PM StudyBlue Flashcard Printing of Lab Final 2211L UGA
CHEM 1411 TCC (SE) Review for Final Exam 1 Fall 2010 Instructor: Dr. Onabajo (Tentative) Page 4 – 17; page 22 - 28: * Characterization of matter. The SI units and derived units of length, volume, mass, density, velocity, and temperature. Scientific notations. Significant figures in calculations. Dimensional analysis and use of conversion factors in calculations.
Experiment and Observation: Please note that this procedure was adapted from the “Anions, Cations, and Ionic Reactions” LabPaq Lab manual (Hands-On Labs Version 42-0304-82-00-01, 2015) Please reference this manual for further information on the lab experiments. The first experiment was to perform a qualitative anion test. This was done by observation of chemical reactions and recording the results in Data Table 1. Using the information from the reactions we were able to identify unknown substances and recorded the results in Data Table 1. Data Table 1: Anion Confirmation Tests Chemical | Anion | Addition of AgNO3 | Addition of HCl | NaBr | Bromide | Cloudy white thin solution | Clear with sedimentation | Na2CO3 | Carbonate | Clear with white sedimentation | Bubbles, sedimentation combined to one formation | NaCl | Chloride | Milky white, white sedimentation | No visible change | Nal | Iodide | Pale green cloudy, sedimentation | Sedimentation dispersed to smaller pieces, solution clears in color | Na2SO4 | Sulfate | No visible changes noted | Milky white | Na2S | Sulfide | Clear with amber sedimentation | No visible Change noted | Unknown #103 | CarbonateNa2CO3 | Cloudy white thin solution | Bubbles, Sedimentation combined to one
Ocean County College Department of Chemistry [Observations of Chemical Changes] Submitted by Andrew Grimm Date Submitted: 5/31/14 Date Performed: 5/31/14 Lab Section: Chem-181DL2 Course Instructor: Amal Bassa Purpose The main goal in this experiment is to observe the properties of simple chemical reactions, and relating their chemical properties to household products. Procedure To begin this experiment I placed two drops of NaHCO3 into well A1 of the 96-well plate, and then added two drops of HCl into well A1. Next I placed two drops of HCl into well B2, and added two drops of BTB, and observed the color. Then I placed two drops of NH3 into well C1 and added one drop of BTB, and observed the color. Next I added two drops of HCl into well D1, and then added two drops of blue dye, and recorded what I saw.
Dileepa Galagedera 02/14/14 Chemistry 106LB – 03 Ms. C. Chrissian Lab 2 – A Library for Chemists * Part I - Warm Up Questions; * Graph #1: a plot made from an equation. * Graph #2: a plot made from supplied data and an equation derived from the plot. * Graph #3: A plot made from an equation; If the value of y is 0.12, the value of x would be (0.12 + 0.01)/ 0.008, or 16.25. * Graph #4 – A straight line plot generated from a made up equation. * Graph #5 – An equation generated from a made up straight line plot.
"Vectors and Motion in Two Dimensions," The Physics Classroom, Glenbrook South High School, Glenview, IL [accessed April 12, 2007] http://www.glenbrook.k12.il.us/gbssci/Phys/Class/vectors/vectoc.html. o Henderson, T., 2004b. "Momentum and Its Conservation," The Physics Classroom, Glenbrook South High School, Glenview, IL [accessed April 12, 2007]
The TCP/IP Guide, Retrieved March 15, 2008 From http://www.tcpipguide.com/ Juniper (ND) Leveraging MPLS to Enable Deterministic Services in the Cable Core, Retrieved March 13, 2008, From: http://www.juniper.net/solutions/literature/white_papers/200228.pdf Shinoda, Yoichi. (2002). The MPLS advantages. Retrieved March 16, 2007 From http://www.soi.wide.ad.jp/class/20010022/slides/02/47.html Greg, T. Tittel, E. & Johnson, G. (2004) Guide to networking essentials [Electric version] Course Technology; Ch 2 - 14 pp 71-528; Retrieved from University of Phoenix eResource website, Aug. 26,
Curriculum Outcomes C11-4-04 Explain heat of solution with reference to specific applications. Examples: cold packs, hot packs. C11-3-05 Write and classify balanced chemical equations from written descriptions of
PHYS 222 Worksheet 5 – Electric Potential Supplemental Instruction Iowa State University Useful Equations Leader: Course: Instructor: Date: Alek Jerauld PHYS 222 Dr. Paula Herrera-Siklódy 1/24/12 Wab (Ub U a ) qq U k 0 r q U kq0 i i ri U q V k q0 r q V k i i ri dq V k r Work done by a conservative force Electric potential energy by two point charges q and q0 Potential energy of charge q0 due to the collection of charges qi Potential due to a point charge. Units: [ 1 V = 1 volt = 1 J/C] Potential due to a collection of point charges Potential due to a continuous distribution of charge Potential difference as an integral of E E in terms of V. E is the gradient of V. Vb Va E dl a b E V Diagrams
JCU Townsville | Evidence in Science – its use and misuse: Homeopathy Proving | SC1101 | | Student name was here | 4/29/2010 | 747 Words (excluding title page and references) Prepared on Microsoft Word 2007 File name: Evidence in Science.docx This essay examines the scientific methods applied to the ‘proving’ of homeopathic medicines, focusing on the techniques used by Dr Hahnemann in his book ‘Organon of Medicine’ (1921). | This essay examines the scientific methods applied to the ‘proving’ of homeopathic medicines, focusing on the techniques used by Dr Hahnemann in his book Organon of Medicine (Hahnemann, 1921). The key elements to be examined are; test conditions, the use of double blind trials, control subjects and falsifiability. It is my intent to show that Hahnemann’s methods of collecting scientific evidence, while adequate for its time, is not in accordance with current policy, and therefore, the use of his evidence would be a misuse in science today. Hahnemann methodology (Background) The experimenter ‘proved’ medicines by ingesting a small quantity of a known substance and then observing the signs and symptoms that followed over the next few days (Hahnemann, 1921).