Unknown 2 Scheme “ Fair game” ions Cations: Na+‚ K+‚ NH4+ ‚ Ca2+‚ Mg(OH2)62+ ‚ Al(OH2)63+ Anions: SO42-‚ HSO4-‚ NO3-‚ OH-‚ Cl-‚ CO32-‚ HCO3- Insoluble Compounds: Ca(OH)2‚ CaSO4•2H2O‚ CaCO3‚ MgCO3‚ Mg(OH)2 I. Describe Sample a. Quick description of sample. Ex: Phase‚ color‚ odor‚ crystalline‚ amorphous‚ gel-like‚ powdery‚ etc. II. Flame Test a. Part 1 i. Orange Flame: Na+ is present. K+ ‚ NH4+ ‚ Ca2+‚ Mg(OH2)62 ‚ Al(OH2)63+ may also be present. ii. Purple Flame: K+ is present (no Na+
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Positive Accounting Theory: A Ten Year Perspective Author(s): Ross L. Watts and Jerold L. Zimmerman Reviewed work(s): Source: The Accounting Review‚ Vol. 65‚ No. 1 (Jan.‚ 1990)‚ pp. 131-156 Published by: American Accounting Association Stable URL: http://www.jstor.org/stable/247880 . Accessed: 31/10/2011 02:22 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use‚ available at . http://www.jstor.org/page/info/about/policies/terms.jsp JSTOR is a not-for-profit service
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Quantitative Analysis Finding the Percentage Composition of Nickel in an Unknown Compound Introduction: This section of lab was about using analytical chemistry and learning how to identify the amount of nickel in an unknown substance. The purpose was to use gravimetric analysis to quantitatively separate and weigh insoluble reaction products as well as utilize the mole method to compute the amount and percentage of nickel in an unknown nickel sample. The chemical reaction that took place involved the
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we know that we know. There are known unknowns. That is to say there are things that we now know we don’t know. But there are also unknown unknowns. There are things we do not know we don’t know. So when we do the best we can and we pull all this information together‚ and we then say well that’s basically what we see as the situation‚ that is really only the known knowns and the known unknowns. And each year‚ we discover a few more of those unknown unknowns.” I would have told you that I thought
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Thin Layer Chromatography of the Unknown Analgesic Jessica Bajao*‚ Phoebe Abalos‚ Kevin Antiga‚ Carmelus Aseneta 3-Biology 2 College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract The group used five different analgesics in this experiment: aspirin‚ acetaminophen‚ ibuprofen‚ caffeine‚ and mefenamic acid. Six analgesics were spotted on the TLC plate including the unknown. After the development of the TLC plate‚ it was placed under ultraviolet light for the spots resulted
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A NEW METHOD FOR GENERATING ALL POSITIVE AND NEGATIVE RULES A project report submitted in the partial fulfillment of the requirements For the award of the degree of BACHELOR OF TECHNOLOGY IN COMPUTER SCIENCE AND ENGINEERING Submitted by N.Vamsi Krishna Y08CS085 P.R.S.Anudeep Y08CS099 K.V.Praneeth Y08CS112 B.Vipin Y08CS124 Under the esteemed guidance of Dr.K.Srinivas‚M.Tech.Ph.D Department of Computer Science and Engineering V.R.Siddhartha Engineering College
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Positive Peer Pressure Whenever you hear the word peer pressure every one immediately refers to the negative influences. Have you ever explored the possibilities of positive peer pressure happening in people’s lives today? There are several examples of peer pressure out there that are positive‚ experienced mainly by teenagers that go unnoticed. The big one that needs to be focused on is the influence of not smoking‚ doing drugs‚ and drinking alcohol. Then the two other examples that we are going
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of the Green Grid is to introduce a standard system that allows business managers and IT operatives to compare the amount of the energy they are consuming and if necessary resolve ways to reduce it. (Courtney 49) Another technology that is having positive impacts on the environment is low carbon technology. (Xie 1593) Low carbon technology is a form of technology that has been developed in China. Largely developed because of China’s low carbon footprint in comparison to other developing countries
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you thought you knew.....their name! That ought to do it and give you some idea. You can include things like their hobbies. Get then to draw a picture and say the artist extraordinary of this masterpiece....you know just go crazy with little unknown facts and get that A! An introduction is usually given when you meet new people. A typical sample of an introduction would be‚ " Hello‚ my name is John‚ nice to meet you!" Friends‚ professors‚ administrators‚ and parents‚ welcome. We are graduating
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Positive views of the IMF Is there any harder job than regulating all of the international markets money? Probably not‚ the topic being discussed throughout this essay will be the international monetary fund and its involvement in the international market. Much has been said about the I.M.F whether it is positive or negative‚ neo-Marxist Che Guevara said “The interests of the IMF represent the big international interests that seem to be established and concentrated in Wall Street.” Here he
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