Chem1 General Chemistry Virtual Textbook
Getting started:
stuff you should know before delving too far into Chemistry
- 1 Matter: its classification and properties
- Extensive and intensive properties • homogeneous and heterogeneous properties; phases • pure substances and mixtures • physical and chemical properties • operational classification of matter
- 2 Understanding density and buoyancy
- Density, specific volume and specific gravity • densities of solids, liquids, and gases • density of water • buoyancy • how is density measured?
- 3 Energy, heat, and temperature: an introduction
- kinetic and potential energy • thermal and chemical energy
heat and work • temperature and its meaning • temperature scales
heat capacity, specific heat - 4 Units and dimensions
- Scales and units • the SI base units • SI decimal prefixes
units outside the SI • derived units • dimensional analysis
unit conversions • units and their ranges in Chemistry - 5 The meaning of measure
- Uncertainty is certain! • random and systematic error
absolute and relative uncertainty • dealing with scatter: the mean
accuracy and precision - 6 Significant figures and rounding off
- Digits: significant and otherwise • implied uncertainty of a number
rules for rounding off • rounding results of calculations
roundoff error
