(in the second centrifuge tube). Now wash (microscale) the combined extracts with saturated NaCl solution (5mL)‚ then with 10% aqueous potassium carbonate (5mL)‚ then with saturated NaCl solution (5 mL) again. Dry the organic layer with anhydrous sodium sulfate. Decant the organic layer into a small beaker and concentrate to roughly 0.2 mL by evaporation in the hood (do not apply heat!). If the sample goes to dryness‚ re-dissolve in hexane (0.2 mL). *Set aside a small amount of your crude
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person being infected with Leptospirosis might lessen. The benefits of an organic fertilizer compared to a chemically made fertilizer are that the plants were able to grow taller‚ faster‚ healthier‚ and were able to bear more fruits. Our project will test if every day produce‚ such as the yogurt can be mixed with animal feces just like how egg shells and banana peels are used to decompose waste and create a rich‚ organic fertilizer. Our project will benefit not only the environment of Guam‚ but
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properties of an unknown ionic compound. In order to do this successfully the group has to use a variety of methods and run several tests on the unknown compound. By doing this the group will be able to identify the different chemical and physical properties of the compound that will help obtain the identity of the specific compound given. The group will devise two syntheses of the compound‚ and compare them for cost effectiveness‚ safety and potential yield of the compound. So to be more specific about
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Naming Chemical Compounds General Information: Scientists all around the globe use a standard method for naming chemical compounds. The standards were set up by an international committee sponsored by the International Union of Pure and Applied Chemistry (IUPAC). Having this standard makes life easier for people who use these compounds everyday. It would be tough to set up any experiment if scientists everywhere used different names for the same compound. It would also make the lab a
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The Branch Davidian Compound was established as living-worship center for the members of the sect to reside. The residents of the compound lived‚ worked‚ learned‚ and worshipped in the isolated community. Because of the nature of the isolation and basis of the belief system of the Branch Davidian church created a unique way of life for the residents. Life in the compound was mostly dictated by David Koresh because he was a self-proclaimed messiah (equip.org) in which the members followed. Because
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Journal of the Science of Food and Agriculture J Sci Food Agric 87:2757–2762 (2007) Review Quality of plant products from organic agriculture Ewa Rembiałkowska∗ Organic Foodstuffs Division‚ Faculty of Human Nutrition and Consumer Sciences‚ Warsaw Agricultural University‚ Nowoursynowska 159 C‚ PL-02 776 Warszawa‚ Poland Abstract: During the last decade‚ consumers’ trust in food quality has decreased drastically‚ mainly because of growing ecological awareness and several food scandals (e
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Name Class Date [pic] Compound Inequalities 3-6 Reteaching A compound inequality with the word or means one or both inequalities must be true. The graph of the compound inequality a < –4 or a ≥ 3 is shown below. [pic] A compound inequality with the word and means both inequalities must be true. The graph of the compound inequality b ≤ 4 and b > –1 is shown below. [pic] To solve a compound inequality‚ solve the simple inequalities from which it is made. [pic] Problem
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Nomenclature for Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You
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Yentl Smith BIOL 3810-504 Compound Action Potentials Date Performed: 15FEB2011 Date Due: 01MAR2011 Introduction Neurons are the cells that receive and transmit electrical signals (University of North Texas‚ 2010). The ability of the neuron to conduct these impulses is because of an electrochemical voltage across the plasma membrane of that neuron. An action potential is an all or nothing response to a stimulus along a single axon. A compound action potential is a graded response that
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1. The primary approach of detecting fraud is anonymous tips and complaints. An organization like business entity should guide employees to provide useful information and to provide various ways and methods for individuals to contribute such kind of information. On the other hand‚ when the organization received the information provided‚ it should have an effective and efficient way to collect and process these complaints‚ dissatisfaction and information. 2. One of the important thing in fraud
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