1. Chemical Analysis
Unit 1
SCH 4C

2. Chemical Analysis
Analytical chemistry deals with identifying the chemical composition or make-up of substances.
Chemical analysis can be qualitative or quantitative.

3. Qualitative analysis
Qualitative analysis is the testing of a substance or mixture to determine what materials are present.

4. Quantitative analysis
Quantitative analysis is the testing of a substance or mixture to determine how much of a material is present.

5. 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

6. 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.

7. Techniques of Qualitative Analysis
Some techniques include:
chromatography
emission and absorption spectroscopy
solubility of ions
characteristic properties and reactions of substances

8. 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

9. 1.1 Activity
Turn to page 8-9
Read through the lab activity and create an observation table in your lab book.