"Qualitative analysis cations and anions" Essays and Research Papers

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    Qualitative Analysis

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    Qualitative Analysis Qualitative is where the results give a colour that you have to match up to a colour chart‚ or have you have done to see if it is positive or negative with a description of what a positive reaction should look like. This test is less reliable as some colour or positive reaction look similar to each other or the same but by adding different chemicals. An example of qualitative would be a pH test as the result gives you a colour and then you have to match it up to the pH scale

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    Anions Lab

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    Purpose: The purpose of this lab is to identify the presence of cations and anions in four unknown solutions by identifying whether they are copper‚ silver‚ iron‚ or chloride ions which is done by adding sodium hydroxide‚ solid copper‚ silver nitrate‚ and potassium thiocyanate to the solutions and analyzing the chemical reactions. Introduction: Chemical change‚ unlike physical change is the change in the composition of a substance rather than simply its shape‚ size‚ or state (Marie‚ 2015). Signs

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    Tests For Anions

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    Task 3:  Tests for Anions: An Anion is an atom which is negatively charged therefore indicating a larger amount of electrons than proteins. Overall the tests for anions were mainly conclusive however 6 out of 8 of the anions we were testing for could only be determined from one specific result for example if a black precipitate formed following the tests the substance is therefore a sulphide however the same result would also show the presence of carbonate and hydrogen carbonate this therefore

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    PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS Copyright © 2002 by The American Society for Pharmacology and Experimental Therapeutics JPET 303:534–539‚ 2002 Vol. 303‚ No. 2 37580/1014526 Printed in U.S.A. Interactions of Human Organic Anion Transporters and Human Organic Cation Transporters with Nonsteroidal AntiInflammatory Drugs SUPARAT KHAMDANG‚ MICHIO TAKEDA‚ RIE NOSHIRO‚ SHINICHI NARIKAWA‚ ATSUSHI ENOMOTO‚ NAOHIKO ANZAI‚ PAWINEE PIYACHATURAWAT‚ and HITOSHI ENDOU Department of Pharmacology and Toxicology

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    Simple qualitative analysis involves the identification of the constituents of an inorganic substance or a mixture of substances. The inorganic substances are split-up into two types of charged particles one of which is positively charged and the other is negatively charged. The charged particles are called ions or radicals. The positively charged ions are called cation or basic radical. The negatively charged ion is called anion or acid radical. In the qualitative analysis of an inorganic

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    An Introduction to Qualitative Analysis Purpose:  Tests the ions of Mg2+‚ Ca2+‚ Sr2+‚ and Ba2+‚  and identify them separately. By using these  observations‚ identify the unknown ion. Then tests  the ions of SO42-‚ CO32-‚ Cl-‚ and I-‚identify them separately‚ and use the observation to identify the unknown.  Procedure Part I - Qualitative Analysis of Group 2 Elements  Mix 0.02M K2CrO4 with each Mg(NO3)2‚ Ca(NO3)2‚ Sr(NO3)2 and  Ba(NO3)2 together. Secondly‚ mix 0.1M (NH4)2C2O4 instead

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    DISCUSSION: Qualitative analysis is used to determine the presence of cations or anions present within a sample and their impurities. Information known‚ such as chemical and physical properties‚ about cations and anions can be used to determine what steps should be used to separate the sample into one‚ specific ion. Qualitative analysis involves forming and decomposing complex ions. Qualitative tests are very sensitive‚ allowing to detect a very small amount present in sample. Due to sensitivity

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    Cations Detecting

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    involves using a nichrome wire loop to introduce a sample into a quiet blue Bunsen flame. Many cations show characteristic colours. The nichrome wire is easily contaminated and was cleaned by dipping it into concentrated hydrochloric acid and heating vigorously with a roaring Bunsen flame. The wire is clean when it gives no colour with the flame. Result of flame testing cations: |Cation Tested |Colour of Flame

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    Qualitative Analysis

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    Qualitative Methods And analysis * . Quantitative research is used widely in social sciences such as sociology‚ anthropology‚ and political science. Research in mathematical sciences such as physics is also ’quantitative’ by definition‚ though this use of the term differs in context. In the social sciences‚ the term relates to empirical methods‚ originating in both philosophical positivism and the history of statistics‚ which contrast qualitative research methods. Qualitative

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    ANALYSIS OF GROUP III CATIONS Precipitation of Group III Cations and Separation into Subgroups Analysis of Subgroup A of Group III Cations Analysis of Subgroup B of Group III Cations (PART 1) Analysis of Subgroup B of Group III Cations (PART 2) ----------------------- Use decantate from group II cations Precipitate Decantate Consider as Group IIIB. Consider as Group IIIA. Centrifuge and separate. Add 10 drops of 1M HCl. Wash with few drops of H2O. Precipitate

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