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Chemical Analysis Unit 1 SCH 4C
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Chemical Analysis Analytical chemistry deals with identifying the chemical composition or make-up of substances. Chemical analysis can be qualitative or quantitative.
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Qualitative analysis Qualitative analysis is the testing of a substance or mixture to determine what materials are present.
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Quantitative analysis
Quantitative analysis is the testing of a substance or mixture to determine how much of a material is present.
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Chemical Analysis Chemical analysis provides important information for science and industry. Chemical analysis is used: To test samples of air, soil and water to identify pollutants To help in the diagnosis of disease In quality control tests of food, drug and other industries
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Different methods of qualitative analysis are suited to each of these different applications. The techniques are designed to test a sample of a substance for the properties of a particular element or compound.
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Techniques of Qualitative Analysis
Some techniques include: chromatography emission and absorption spectroscopy solubility of ions characteristic properties and reactions of substances
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Connections to Your World
Qualitative analysis tests used everyday include: Pregnancy tests Breathalyser tests Drug tests pH testing kits for a pool Blood glucose test for diabetics
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1.1 Activity Turn to page 8-9 Read through the lab activity and create an observation table in your lab book.
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