CHEM 1214 Chapter Notes - Chapter 1: Significant Figures, Unit, Anders Celsius
19 Apr 2016
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Sublimation: transformation of a solid directly into vapor/gas. i. Freezing: liquid to solid: melting: solid to liquid vi. Chemical formula: notation for representing composition of compounds using symbols of elements and subscripts to indicate the proportions. i. ii. Immiscible liquids: combinations of liquids that are incapable of mixing with, or dissolving in , each other: mixtures can be separated based on differences in physical properties: Distillation: process using evaporation and condensation to separate a mixture with different volatilities(rate of vaporization: volatility is inversely proportional to strength of interactions btw particles; the stronger the interactions, the lower the volatility. ii. Filtration: process for separating solid particles from a liquid or gaseous sample by passing the sample through a porous material that retains the solid particles. Chromatography: a process involving stationary and mobile phases for separating a mixture of substances based on their different affinities for the two types of phases. Properties of matter iii: pure substances have distinct properties:
