Compare the efficiencies of the two distillation methods in your lab notebook. Postlab questions: 1,3 on p. 65. Please include the answers in the appropriate section of your lab report. (Results and Discussion or Conclusions) Sept. 11-17 Prelaboratory
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
Physical Electronics (PHI) was formed in 1969 as a spin-off from the University of Minnesota. The research performed by Roland Weber, Paul Palmberg, and their advisor Bill Peria revealed the extreme surface sensitivity of Auger electron spectroscopy and led to the development of the first commercial Auger surface analysis instruments and the formation of Physical Electronics. As PHI grew, emerging technologies expanded PHI from an
: London : Whurr, 1993., Manchester College Library Catalogue, EBSCOhost, viewed 10 December 2012 'Encyclopedia of Psychology (Book)' Raymond J. Corsini, 1984, Science News, 126, 8, p. 114, Academic Search Premier, EBSCOhost, viewed 12 December 2012. Lakeman, R 2007, 'Humanizing Psychiatry and Mental Health Care: The Challenge of the Person-centred Approach', Journal Of Psychiatric & Mental Health Nursing, Academic Search Premier, EBSCOhost, viewed 12 December 2012. http://powerprinciple.wordpress.com/2011/05/12/3-ways-that-you-know-you-are-self-actualized/ Rogers, C 1951, Client-Centered Therapy, n.p. : Constable, 1951., Manchester College Library Catalogue, EBSCOhost, viewed 12 December 2012. Word count 2955 without referencing Assignment 1.1 person centred approaches to counselling 1.1 explain the main principles that underpin person-centred theory in relation to counselling * ------------------------------------------------- Hierarchy of Needs: Hierarchy of needs is a theory proposed by Abraham Maslow in his 1943, often portrayed in the shape of a pyramid and is commonly called a theory of Human Motivation. The
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.
Trends of the Periodic Table of Elements Introduction The objective of this experiment was to establish trends in the Periodic Table of Elements, involving the characteristics of elements in the same group and/or period. In Part 1, the melting point trends of metals in Group 1, Period 3, Period 4, Period 5, and Period 6 were observed, using the Web Elements website (http://www.webelements.com/), and then were graphed (by each Group or Period individually) to display the trends. Trends were observed in all graphs, and the melting points were related to multiple variables, such as electron configurations, nuclear charge, shielding, atomic radii, and cohesion energies. In Part 2, Group two nitrates were mixed with different solutions, and were observed for indications of chemical reactions (precipitate formation and solubility) that formed periodic trends. In Part 3, six specific metals were reacted, in individual test tubes, with hydrochloric acid and a variety of different metal ion solutions, in order to find if a reaction of metal displacement happened.
(2012, October 2012). Retrieved from Wikipedia: http://en.wikipedia.org/wiki/FCC#cite_note-Federal_Communications_Commission-2 Federal Energy Regulatory Commision. (2012, August 12). Retrieved from Wikipedia: http://en.wikipedia.org/wiki/FERC Merriam-Webster Dictionary. (2012, October 6).
2009;54;2129-2138 doi:10.1016/j.jacc.2009.09.009 This information is current as of February 22, 2011 The online version of this article, along with updated information and services, is located on the World Wide Web at: http://content.onlinejacc.org/cgi/content/full/54/23/2129 Downloaded from content.onlinejacc.org by on February 22, 2011 Journal of the American College of Cardiology © 2009 by the American College of Cardiology Foundation Published by Elsevier Inc. Vol. 54, No. 23, 2009 ISSN 0735-1097/09/$36.00 doi:10.1016/j.jacc.2009.09.009
A Library for Chemists Prasenjit Saha Chem Lab 106 2/10/13 Spring 2014 Prasenjit Saha, Abdullah Sharif, Scott I. Warm-Up Using f(x)= 0.008x-0.1 (as provided by the book) or simply by looking at the trendline, I can predict what y will be when x=45 and what x will be when y=.12. When x=45, y is .26. When y=.12, x is 16.25. II. Focus Questions 1.
Chronicle of Higher Education. Judge's Block on Stem-Cell Research Is Lifted, and Scientists Are Optimistic About Eventual Victory. , 9/17/2010, Vol. 57 Issue 4 pA8-A9. Retrieved December 7th, 2010 from the Kaplan University Library on the World Wide Web http://web.ebscohost.com.kaplan.uah.edu/ehost/detail?vid=1&hid=14&sid=c013e172-eb14-4782-8833-43e75b003d73%40sessionmgr11&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=aph&AN=53997127 Byron Barlowe, Editor/Webmaster, Leadership University.