TEACHER’S GUIDE CHEMISTRY TOPIC: OBSERVATIONS AND EXPERIMENTS USEFUL TIPS: Student’s experiments can be done in groups. Groups can be given different mixtures. Each group then carry out their own experiment‚ makes a write up of their procedure and presents to the rest of the class together with the samples obtained. UNIT 1: MIXTURES AND PURE SUBSTANCES This unit is suitable for senior one (S1) BRIEF DESCRIPTION OF THE UNIT: This unit deals with: • Methods of separating
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Cell Structure and Function 16 October 2014 Gel Filtration and Electrophoresis Objective The essential goal of the experiment was to separate proteins in a solution based on size in different fractions. The relative protein content for each one fraction was found through the utilization of an amido black-based protein assay. Later in the trial polyacrylamide gel electrophoresis was utilized to separate BSA from hemoglobin. Methods I. Gel Filtration and Protein Assay: 1. A slurry of Bio-Gel P-100
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until crystallization is complete. 10. set up a vacuum filtration apparatus and place a piece of filtration paper in the Buchner funnel 11. Swirl the beaker and pour its contents in to the Buchner funnel 12. Transfer the salicylic acid crystals as completely as possible to filter paper 13. Pour the blue solution collected in the filtration flask in to a second clean beaker and reserve it for the crystallization of
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from this product is a crude solid which cannot be used as an analgesic and therefore the crude solid must be purified. This purified product is what is later put into the analgesic. In this experiment‚ the procedures that are important are vacuum filtration and recrystallization which are both used to obtain the Acetaminophen product. When collecting products‚ it is important to know how much product is left and what is lost through the experiment. To do this‚ the balanced equation will be looked at
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cholera. Water refilling stations can help address the water contamination problem. Here are questions to ask before patronizing a water refilling station. 1. Does the water refilling station have a performance data sheet for its purification or filtration system? This sheet lists all the contaminants the system is certified to remove and to what degree. It also contains certifications the company may have. It is not the number of stages the water goes through a process that makes water clean‚ but
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Ballast Water Treatment Advisory Our Mission The mission of ABS is to serve the public interest as well as the needs of our clients by promoting the security of life‚ property and the natural environment primarily through the development and verification of standards for the design‚ construction and operational maintenance of marine-related facilities. Quality & Environmental Policy It is the policy of ABS to be responsive to the individual and collective needs of our clients as well as those
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Solvent/Water Trap Diagram Rodney Atwaters Halle Bair May 28‚ 2013 Chemistry 36100 Introduction The purpose of this lab was to produce benzoic acid by mixing sodium benzoate with hydrochloric acid. The Hydrochloric acid used in the experiment was a stock solution made by mixing HCl Acid and deionized water. HCl acid‚ historically called‚ muriatic acid or spirits of salt‚ hydrochloric acid is produced from sulfuric acid and common salt‚ NaCl (Princeton.edu). Since the early 1900 ’s‚ sodium
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under reflectors Medium Motor speed with 25% shaded Medium Motor speed with 50% shaded Medium Motor speed with 75% shaded Medium Motor speed under red filtration Medium Motor speed under blue filtration Medium Motor speed under green filtration Medium Motor speed under yellow filtration Medium Post-Lab Questions 1. Develop hypotheses predicting the efficiency of solar energy from direct sunlight against the 4 variables tested? Direct vs indirect
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selection syntax. Can visualize dynamic molecular and volumetric data. Major molecular data file formats are supported. Capability of movie making. Interactive molecular dynamics simulation. Source code is written in C and C++. STEPS IN SIMULATING A PROTEIN:- STEPS FOLLOWED FOR STIMULATING GAL80 PROTEIN 1) PDB file for Gal80 is downloaded from protein data bank. (PDB id-3V2U) 2) Using modeller‚ a new 3-d
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without filtration could be hazardous. The target market for the situation analysis is 40 million. Traditional Method for Home Water Purification Of the various methods available for water purification‚ it was found that about 20 million people of the target market used the traditional boiling of water as their purification method. Boiling was considered inexpensive and helped in removing bacteria. Mechanical methods for home water filtration In the mechanical methods of home water filtration‚ which
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