the materials given to us were hydrates by heating them and then dissolving them in water. Our results showed that all of our substances were hydrates besides the sucrose‚ sucrose if the only one which did not both bring condensation when heated and dissolve in water‚ which agreed with our hypothesis because we also thought that sucrose was going to be the only one that wasn’t a hydrate. The only error that we may have encountered in this lab was that when heating‚ the flame was not always the same
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Lab Report Useful links http://www.psychwww.com/tipsheet/labrep.htm http://mhhe.com/biosci/genbio/maderinquiry/writing.html https://owl.english.purdue.edu/owl/section/2/10/ A scientific report usually consists of the following: 1. Title 2. Abstract 3. Introduction 4. Materials and methods 5. Results 6. Discussion 7. Literature cited Title The title should be less than ten words and should reflect the factual content of the paper. Scientific titles are not designed to catch
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The Brita Products Company began in 1988 under the recommendation of Charlie Couric‚ a marketing executive with the Clorox Company. Optimistic of its capability to be profitable‚ Clorox acquired the right to market the home water filtration system. Clorox‚ citing the overriding long-term benefits of continuous filter sales‚ initially engaged in deficit spending. Such measures paid off and Clorox not only created a $350 million market‚ but also captured 70% of the market revenue. Brita enjoyed success
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Experiment 2 Date: 24 January 2006 Title : Crystallization of a Crude Sample Objective : Preparation of pure diphenyl via crystallization of crude diphenyl dissolved in ethanol. Structural Formula of Organic Substances Involved : Diphenyl Ethanol Apparatus : Round-bottom flask (100 mL)‚ measuring cylinder (50 mL)‚ conical flask (50 mL)‚ filter flask‚ beaker (100 mL)‚ stemless glass funnel‚ Hirsch funnel‚ capillary tube‚ long glass tube‚ watch glass‚ glass vial‚ water condenser
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provide biological filtration and clean our system. You have three kind of filtration but the most healthy is biological. Others are chemical filtration‚ mechanical filtration (if you dont clean filters of mechanical filtration‚ after a while to be hold particulates rot and it makes dirty your aquarium). It means‚ Biological filtration is required to keep living. Chemical filtration is important to throw chemical harmful. Mechanical filtration is required to
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concentration affects osmotic pressure. The higher the solute concentration‚ the higher the osmotic pressure. Filtration 4. The following refer to Activity 4: Simulating Filtration. Using your results in Chart 4‚ which MWCO membrane had the greatest filtration rate? 200 MWCO Explain the relationship between pore size and filtration rate. The larger the pore size the greater the filtration rate. Which solute did not appear in the filtrate using any of the membranes? The powdered charcoal. What
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paper hasten filtration? Why is it advisable to place a small piece of wire between the funnel and the mouth of the flask during hot filtration? Fluted filter paper is effective in preventing crystal formation in the filter paper. It is also often used in filtering hot saturated solution used during crystallization. One major advantage of a fluted filter is that it increases the speed of filtration. The crisscrossing of the folds help alleviate the pressure to make the flow of filtration faster. The
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P H A R M AC E U T I C A L application note Checking the accuracy of PERKIN-ELMER POLARIMETERS H. Stenz‚ Bodenseewerk Perkin-Elmer GmbH Abstract Quartz standards‚ sucrose solutions and optically active pure liquids are discussed as potential polarimetry standards. It is suggested to preferably use quartz standards for checking the accuracy of Perkin-Elmer polarimeters. Quartz standards are absolutely stable‚ have a high accuracy and are easy to use. For laboratories working in an environment
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Expt. 7. Sexual Plant Reproduction: Testing conditions required for pollen germination and tube growth ____________________________________________________________________________ File: pollen Modified from E. Moctezuma & others for BSCI 442 (Sze) Objectives: Get familiar with the parts of flowers: male and female organs Observe pollen germination and tube growth in real time. Test the conditions that stimulate pollen germination and tube growth. Observe cytoplasmic streaming (due
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method motioned in our lab manual pages 33-40 . In this experiment‚ the separation methods were decantation‚ filtration and evaporation and extraction and each is explained below: Decantation‚ this is the separation of liquid from a solid by careful pouring the supernatant liquid from the holding vessel without disturbing the solid at the bottom of the container. Filtration‚ Filtration is a mechanical or physical process to separate solid particulates from fluids. The solid remaining behind on
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