salts when reacted with (NH4)2CO3. The principle of periodicity applied to the results of this series of experiments. It helps‚ in trying to see the periodic pattern‚ to know the pattern that results when we do a separation and analysis of all metal ions. PROCEDURE Procedure A 1. 2 drops of 6 M HCl was added to 1 ml of the mixture of the metal cations. 2. The suspension was centrifuged for 1 minute as ppt. of chloride was formed. 3. 1 additional drop of 6 M HCl was added to the clear
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Lab #3: Ion Exchange Chromatography Objective The purpose of this experiment was to separate proteins on the basis of their net charge at a particular pH. In cation exchange chromatography positively charged molecules are attracted to a negatively charged column. Conversely‚ in anion exchange chromatography‚ negatively charged molecules are attracted to a positively charged column. Experimental results could be monitored in a predictable way by controlling running pH‚ salt concentration‚ and by
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life traits in fruit flies. The scientists‚ Seema Sisodia‚ Puja Verma and Bashisth Narayan Sing explain there research in “The Effect of Diet Quality and Associated Metabolic Changes in Adult Stress Response and Life-History Traits in Drosophila Ananassae” The D. ananassae used in the experiment are flies collected from fruit and vegetable india in October 2010. The purpose of the study was to observe the role of diet during stress response at cellular and metabolic levels in fruit flies. Before
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Drosophila melanogaster is a common fruit fly that has been useful for most experiments in the study of Genetics. The male and the female fruit fly are similar and different in regards to how they look‚ structurally. They are similar because both genders have a head‚ thorax‚ proboscis‚ antennae‚ eyes‚ and mouth parts. However‚ males are smaller than females and have about five abdominal segments as opposed to the seven that the female has. The life cycle of these fruit flies consist of egg‚ larvae‚ metamorphosis
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The Nervous System II: Ion Channels 1. List four neurotransmitters that bind to ion channels‚ these neurotransmitters are called __directly____-acting neurotransmitters. a. ACh b. glutamate c. GABA d. Glycine 2. a. The binding of ACh opens ion channels in the dendrites or cell body that permits both _sodium______ and _potassium____ to move through them. b. Which ion would move into the cell? _sodium____out of the cell? _potassium_____________ c. Which ion has the greatest electrochemical
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for Experiment #7 Student’s Name __________Lisa __________ Date of Experiment _08/03/2013__________ Date Report Submitted ______08/05/2013___________ Title: Identification of Metallic Ions Purpose: To perform and observe the flame tests of some alkali and alkaline earth metal ions. Understanding Light Introduction: Electrons from an atom can absorb energy and become excited to move from the stable “ground state” energy level to a higher energy level. Imagine one of
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The Eight Piece 18V 3.0Ah Li-Ion Cordless Combo Kit (DLX8010) is a large all-in-one kit from Makita. The kit includes eight different high-end tools‚ as well as batteries‚ a charger‚ and a large duffel bag to carry everything. It includes everything you need to start or significantly bolster your collection of high-quality power tools. Including a Hammer Driver Drill‚ a Circular Saw‚ a Rotary Hammer‚ and Five Other power tools in addition to the included bag and accessories. It seems like an incredible
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Advantages and disadvantages of a Web Presence The World Wide Web is a World Wide Market. It is a new way of selling. More and more customers expect to find your product news and specifications on the web. But even on the Net‚ you have to advertise your product. Using Internet as a media to advertise your product is different from traditional media. Through Internet companies can be present all over the world. Using the web as an advertising tool is the cheapest way to be discovered at every time
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arising from the stout underground stem (rhizome). Leaflets are numerous‚ rigid‚ lanceolate‚ up to 1 meter long‚ 2 to 7 cm centimeters wide. Male inflorescence is brown‚ erect‚ up to 1 meter high. Female inflorescence is stout‚ 1 meter high or less. Fruit is globose‚ nodding‚ up to 30 centimeters in diameter. Carpels are numerous‚ dark-brown‚ striate‚ smooth‚ 10 to 14 centimeters long‚ compressed‚ obovate. Seeds are hard‚ white‚ and as large as a hen’s egg. It can be cultivated or wildcrafted. Nipa
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members to consider incorporating more fruits and vegetables into their diets. I. The American Heart Association states‚ that cardiovascular disease causes about 2200 deaths a day in the US. A. According to a study at Oxford University‚ eating more fruits and vegetables can lower your risk for heart disease by 25%. 1. Green leafy vegetables and red or purple colored fruits are the best. a. The darker the colors‚ the denser the nutrients. II. Fruits and vegetables can help you lose and maintain
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