General Chemistry I, Week 1
General Chemistry I, Week 1 Chem 1251
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This 2 page Class Notes was uploaded by Vani Singh on Sunday January 17, 2016. The Class Notes belongs to Chem 1251 at University of North Carolina - Charlotte taught by in Spring 2016. Since its upload, it has received 36 views. For similar materials see General Chemistry I in Chemistry at University of North Carolina - Charlotte.
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Date Created: 01/17/16
General Chemistry I Temperature: Relationship Temperature Scales °F °C K Boiling point 212° 100° 373 H O 2 Freezing point 32° 0° 273 H 2 Abs Zero 459° 273° 0 There’s a 180° difference between the boiling and freezing point On the Celsius scale there’s a 100° difference Absolute Zero: when all motion stops K = °C + 273 5 °C = (°F – 32) * 9 9 °F = * °C + 32°F 5 Extensive Property: depends on the amount of matter Ex. Mass, length Intensive Property: does NOT depend on the amount of matter; not additive Ex. Density, temperature SIGNIFICANT FIGURES Multiplication & Division: Least number of sig figs Addition & Subtraction: Least number of decimal places Zeroes: Significant Insignificant Trailing zeroes Leading zeroes w/ decimal point Trailing zeroes w/o decimal point Points Middle zeroes Density: mass(m) 3 Dvolume(v) SI Units = kg/ Classification of Matter Pure Substance Mixtures Elements Homogenous Compounds Heterogeneous Fundamental Atom