CHEM 022 Lecture Notes - Lecture 2: Unified Atomic Mass Unit, Bohr Radius, Significant Figures

• School: Pasadena City College
• Department: Chemistry
• Course: CHEM 022
• Professor: Graves

Document Summary

In chemistry, the accepted measurement system for mass (m) or volume (v) is the metric system, also known as the system international (si) system. The si unit for mass is referred to as a gram. The si unit for length is also the meter. Si unit for volume is either liter (for some liquids) or meter. The si unit for volume is not commonly used; however, it does arise at times. Length | meter (m) | 1 m = 39. 36 in. Yottameter one gram is ~= to one cubic centimeter (or one milliliter) of water. Si unit for mass is actually at the 103 magnitudes rather than the standard magnitude that serves as the si for both volume and length. To convert english measurements into si, apply the following formulas: Conversion to liters from the english system uses the formula: The most important of these is called atomic mass, represented by the symbol u (atomic mass unit, or sometimes amu)