Gravimetric Analysis of a Chloride Salt CHEM 1001 Purpose: To illustrate typical techniques used in gravimetric analysis by determining quantitatively the chloride content in an unknown soluble salt. Theory: AgCl(s) is a very insoluble solid‚ yet still does have some solubility. Because of these traits‚ the following reaction is able to occur: Ag+(aq) + Cl−(aq) → AgCl(s) . This reaction is able to occur in both directions. When a soluble silver salt such as AgNO3 is added to a solution containing
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Conclusion: (Identity‚ % error‚ other evidence‚ how to improve) The identity of Unknown A is the compound cobalt(II) chloride hexahydrate (CoCl₂•6H₂O).This is justified by the similarities in color of red-purple crystal like grains‚ which is significant in identifying the product out of the eight suggested identities. Only two had similar characteristics which were CoCl₂•6H₂O and CoSO₄•6H₂O. Before unknown A was heated‚ there was a notable common physical property of the substance being red crystal
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Trice Riddle Mrs. Jennifer Sikes English 1020 11 February 2009 The Unknown Continent Many people know about it and have seen it on maps before but they still do not pay attention to detail or really care. People still say today that it is a country but it is a continent made up of countries. Many people describe it as the “dark continent” because it has not developed enough to be like an Asia or the Americas. Its hard to really discover what Africa is and how to define it. The land is rich
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1. Title: Double unknown identification of a mixed culture of Gram-negative and Gram-positive bacteria 2. Author: Nick Fiore‚ University of Kansas‚ Biology 402‚ Fall 2014 3:00pm room 6040 3. Abstract: The purpose of this experiment was to isolate two unknown bacteria and perform a series of selective and differential tests to correctly identify each. After the bacteria was isolated a series of differential and selective tests following the dichotomous key attached were used to identify each bacteria
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UNKNOW BACTERIA LAB REPORT UNKNOWN 36 Introduction The purpose of this lab was to identify two unknown bacteria from a mixed culture. The reason for identification of unknown bacteria was to help students recognize different bacteria through different biochemical tests and characteristics. This is important in the medical field because identification of unknown bacteria can help treat a patient by knowing the contributing source of a disease. Also knowledge of different bacteria helped others
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Once known as the number one agricultural county in the nation‚ Los Angeles County houses nearly 10 million residents. This means the demand for consumable water is high‚ and with this demand comes depletion. Many areas of the Central and West Coast Basins are experiencing ground water depletion‚ which has resulted in an intrusion of saltwater in coastal aquifers‚ “natural filters that trap sediment and other particles (like bacteria) and provide natural purification of the ground water flowing through
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Salt is modern book written about the history of salt and its effect on the events of the past. The book maintains a semi-chronological flow to it. It is nonfiction and there are no characters. Salt has had an effect on the past that is often overlooked‚ but not by the author of Salt‚ Mark Kurlansky. Salt takes you through the history of the only edible rock. It begins talking about the sexuality of salt as a hook‚ then begins talking about the nutrition of salt. The rest of the book is about different
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Epsom salt is a mineral compound containing magnesium and sulfate. Long praised for its numerous uses‚ Epsom salt has been long used for beauty care‚ health‚ cleaning purposes‚ gardening-related uses‚ etc. 1. Hair shampoo Take Epsom salt and add it to your shampoo‚ wash your hair as usual‚ in order to remove the excess oil in the case of greasy hair. 2.Improves hair volume In order to eliminate the frizz and get more volume‚ you should combine your hair conditioner with Epsom salts in equal
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Unable to read the Gram Stain at first it was later confirmed that Unknown #7 was a gram negative bacteria. When introduced to Starch Unknown #7 produced no zone of clearing showing that it did not contain the enzyme amylase. When introduced to the Lipid Unknown #7 did produce a zone of clearing indicating that it did contain the enzyme lipase. When introduced to Casein Unknown #7 produced no zone of clearing indicating that it did not contain the enzyme protease. When streaked onto the Gelatin‚
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Salt Marshes‚Mangroves‚and Coral Reefs Salt Marshes • Salt marshes are found along low lying coastlines where boggy ground is flooded by sea water either daily or less frequently. • Many UK salt marshes have been reclaimed for farm land‚ but those that remain provide valuable habitats where salt-tolerant plants grow and birds nest. Salt marshes also pay a vital role for coastal protection‚ they contain creeks which allow tidal waters to flow both in and out which reduces the wave energy
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