CHEM 151 1st Edition Lecture 2 Outline of Last Lecture I. Syllabus Outline of Current Lecture II. What is Chemistry?III. PropertiesIV. Separation MethodsCurrent LectureThree Central Goals:1. Analysis – “What is this?”2. Synthesis – “How Do I Make It?”3. Modeling – “How Do I Explain It?”Three Different Perspectives:1. Macroscopic 2. Microscopic3. SymbolicUsing salt as an example, a macroscopic perspective would be a standard salt shaker. A microscopic perspective would be a diagram of the sodium and chlorine atoms assembled together. A symbolic perspective would be its chemical formula: NaCl.Properties:1. Extensive (tells you how much)A. Dependent on amount of materialB. Independent on type of material 2. Intensive (characteristic)A. Independent on amount of material B. Dependent on type of material 3. Qualitative (verbal)4. Quantitative (numerical)These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Separation Methods:1. Distillation-based on difference in boiling points 2. Extraction-based on difference in solubility3. Filtration-based on difference in size4. Chromatography-based on difference in absorption onto different
View Full Document
Unlocking...