Analytical-Chemistry-1-part-1 (2).pdf

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  Analytical Chemistry 1 Fundamentals of Analytical Chemistry “Analytical Chemistry is what Analytical Chemists do.”  – late Charles N. Reilley “Unless our knowledge is measured and express in numbers, it does not amount to much.” – Lord Kelvin  Introduction Definition of Analytical Chemistry -Is concerned with the chemical characterization of matter , both qualitative and quantitative.-It answers two important questions: What is it? What arrangement, structure or form? (qualitative) and How much is it? (quantitative) -It seeks improvement of measuring the chemical composition of natural and artificial materials, improve the reliability of existing techniques to meet the demands for better chemical measurements  Major types of Chemical Analyses 1.Qualitative Analysis  – reveals the chemical identity of the sample ( elements, compounds, ions, etc.)-need the knowledge of organic chemistry-separation may be performed by selective chemical reactions or with instrumentationExample: formation of a white precipitate when adding silver nitrate to a dissolved sample indicates the presence of chloride-certain chemical reactions will produce colorsto indicate the presence of organic compound classes(e.g. ketones,alcohols, aldehydes)-infrared spectra will determine functional groups of organic compounds


Oct 7, 2019
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