Lovely Professional University‚ Punjab Course Code Course Title Course Planner Lectures CHE883 ENVIRONMENT CHEMISTRY 15316::Pushp Lata Course Category Tutorials Practicals Credits Courses with numerical and conceptual focus 3.0 0.0 0.0 TextBooks Sr No Title Author T-1 Environmental Chemistry Edition Year Publisher Name Colin Baird‚ Michael Cann 4th 2008 W.H. Freeman and company Reference Books Sr No Title Author Edition
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EXPERIMENT TWENTY Qualitative Analysis of Anions Analysis of Solutions Containing the Ions Cl-‚ Br-‚ l-‚ SO42-‚ CO32-‚ and NO3- This experiment continues the qualitative analysis begun in Experiment 19. Here we will be analyzing solutions to determine the presence of anions. The same techniques that were used for the cation analysis must be used for the anions. If you have not carried out Experiment 19‚ read the introductory section before starting this experiment. The major difference
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Analysis of Lipid through Two-Dimensional Thin Layer Chromatography Myca Pua‚ Ramon Ramos‚ Amanda Redilas‚ Kimleigh Reyes‚ Nathaniel Sim and Clara Tamondong Group 9 2F Medical Technology Biochemistry Laboratory ABSTRACT Lipids constitute a group of naturally occurring molecules that include fats‚ waxes‚ sterols‚ fat-soluble vitamins such as vitamins A‚ D‚ E‚ and K‚ monoglycerides‚ diglycerides‚ triglycerides‚ phospholipids‚ and others. In this experiment lipid was extracted from the egg yolk
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have a shiny appearance * are usually poor conductors of heat and electricity * can be solids‚ liquids‚ or gases at room temperature solid liquid gas sulfur bromine nitrogen carbon oxygen Nonmetals‚ and Metalloids Metalloids: * are located on the solid line that starts
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Table Lab Look up all the halogens‚ give their name and formula. Describe what each one looks like under normal conditions. Halogens contain salts and they are: 1. Flourine F Normal Conditions- Gas 2. Chlorine Cl Normal Conditions- Gas 3. Bromine Br Normal Conditions- Liquid 4. Iodine I Normal Conditions- Solid 5. Astatine At Normal Conditions- Solid Give the names and formulas of three compounds that contain one element from the Noble Gas family. 1. Helium He 2. Neon Ne 3. Argon
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www.igcse.at.ua ORGANIC CHEMISTRY OIL and its many useful PRODUCTS The origin of oil Crude oil is formed from organic material of the remains of plant and animal organisms that lived millions of years ago. These remains form sediments eg at the bottom of seas‚ and become buried under layers of sedimentary rock. They decay‚ without air (oxygen)‚ under the action of heat and pressure to form crude oil over millions of years. It is a fossil fuel because it is formed from
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group two have‚ group two has 2 valence electrons. When group two elements become ions what is their charge‚ their charge is +2. What are the group 17 elements called‚ they are called the Halogens. List the group 17 elements‚ Fluorine‚ Chlorine‚ Bromine‚ Iodine‚ and Astatine. How many valence
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____ 2. 2s22p6 B. Which has the lowest first ionization energy? ____ 3. D = 2s22p5 C. Which is a noble gas? 10. Convert 4.3 kilograms to centigrams using dimensional analysis. 11. Consider the elements neon‚ bromine‚ and phosphorus. Which has five electrons in its 4p sublevel? 12. Write the formula obtained when this atoms loses or gains valence electrons and becomes an ion. Tell whether it is a cation or an anion. Be 13
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Who discovered the element? Selenium was discovered by Jons Jacob Berzelius in 1817. How was the element discovered? Selenium was discovered by Jons Jakob Berzelius in 1817. In 1817‚ he was studying the chemicals used in making sulfuric acid‚ but they got selenium from a red-brown sediment which collected at the bottom of the chambers in the particular plant. At first he thought it was the element tellurium and tellurium is a rare element‚ so he brought it back to his laboratory. After studying
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CHEM3412 Synthesis of a Porphyrin Porphyrins are hetereonuclear‚ macrocyclic compounds that play an important role in living organisms. Examples include the non-protein heme portion of hemoglobin in animals whereby the lone pairs on nitrogen can bind to the oxygen-carrying iron. In plants‚ chlorophyll uses the vast conjugation to allow absorption of light for photosynthesis. The characteristic colors of porphyrins is also due to the conjugation. An examination of the porphyrin structure
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