Chromatography Analysis of Black Pens to Determine Unknown Sample Purpose: Paper chromatography was performed on five different black pens‚ using four different solutions to determine which would be most appropriate to use on an unknown sample. Paper chromatography was then performed on the unknown sample to identify which pen was used to create it. Procedure: Each person participating in the analysis was assigned one solution to work with: V. Temple used distilled water‚ D. Sellers used
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Encyclopædia Britannica Paper chromatography is used to separate "dissolved chemical substances". An example of dissolved chemical substances could be the pigments that make up a specific color‚ for example in a marker. When a chromatography paper experiment is done on a black marker‚ the experiment tends to separate all the different pigments that make up the color. In this experiment‚ the substance investigated was a black water soluble Giotto marker pen. Paper chromatography has two phases
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Properties of Gases General Chemistry 1 Lab 5 Abstract: The purpose of this experiment is to examine the properties of several gasses‚ which were the products of a reaction‚ and examine the way the gasses react under certain conditions. These conditions‚ such as introducing a flame to the gas as well as oxygen and CO2‚ caused other reactions to occur. Hypothesis: If the gasses are correctly synthesized then there will be a clear reaction with the introduction of the flame‚ O2‚ CO2‚ Air
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B.E Chemical Engineering Syllabus ENGINEERING MATHEMATICS – III Sub Code Hrs/ Week Total Hrs. : : : 10MAT31 04 52 IA Marks Exam Hours Exam Marks PART-A UNIT-1 Fourier series Convergence and divergence of infinite series of positive terms‚ definition and illustrative examples* Periodic functions‚ Dirichlet’s conditions‚ Fourier series of periodic functions of period and arbitrary period‚ half range Fourier series. Complex form of Fourier Series. Practical harmonic analysis. 7 Hours UNIT-2 Fourier
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Chem 105 Guide to the Formal Laboratory Report The purpose of a formal report is to communicate effectively to another person the goal‚ procedure‚ data analysis method‚ and results of your laboratory work. The report is divided into several well-defined sections. Each section must be present in a complete report. To earn an outcome point for the laboratory report‚ a student must submit a formal lab report that earns a score of at least 90/100. Each error (factual‚ grammatical‚ typographical
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Form A Chemistry 100 Introduction to General Chemistry Fall Semester‚ 2010 Exam One‚ 150 points On this page print your name‚ your lab section number‚ and the name of your TA. Also sign this test booklet. Name________________________________Lab section____________TA___________ Signature________________________________________________________________ The exam consists of 21 problems and one extra credit problem. Partial credit is given only for work that is legible and logically and clearly
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3.09 Honors: Here is sample data and how you would do the calculations. Of course‚ you will need to use your data‚ but you can follow along step-by-step. In the lab‚ you must record the following measurements: mass of your empty crucible mass of your crucible and the hydrate (the original chemical) mass of the crucible and chemical after heating(which is the dehydrate) The other two in the data table are calculated (mass of hydrate and mass of dehydrate) SAMPLE DATA – YOU MUST USE YOUR
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Chapman et.al (2009) studied the local impact of hoisted point sources on late spring aerosol driving and cloud-aerosol cooperations‚ in northeastern North America‚ was studied by utilizing the WRF-Chem community model. The immediate impacts of mist concentrates on approaching sun powered radiation were recreated utilizing existing modules to relate aerosol sizes and chemical composition to airborne optical properties. Direct impacts were reenacted by including a prognostic treatment of cloud bead
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Case Study 2 Chem-Med Company 1. What was Chem-Med’s rate of sales growth in 2007? What is it forecasted to be in 2008‚ 2009‚ and 2010? a. 2007: 25% b. 2008: 40% c. 2009: 40% d. 2010: 40% 2. What was Chem-Med’s net income growth in 2007? What is it forecasted to be in 2008‚ 2009‚ and 2010? Is projected net income growing faster or slower than projected sales? After computing these values‚ take a hard look at the 2008 income statement data to see if you want
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I currently work for a Wyndham owned resort. We have several third party service providers; however‚ two of our main ones are Ecolab and Ultra Chem. Ecolab is a mandatory provider of our core cleaning chemicals and pest control because Wyndham has an agreement with them. Our sales representative has established a great relationship with us through keeping good records about our order history‚ equipment‚ needs and problems. When I refer to past issues or orders‚ he always knows exactly what I
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