CHEM 102 1st Edition Lecture 2Outline of Last Lecture II. SolutionIII. Dissolution of solids in liquidsIV. Ionic compounds vs. covalent compoundsV. Dissolution of liquids in liquidsVI. Dissolution of gases in liquidsOutline of Current Lecture I. Formulas to knowII. Colligative propertiesIII. Vapor pressure lowering of a liquidIV. Raoult’s lawCurrent Lecture- Formulas to knowo Percent by mass % Solute = mass of solute X 100Mass of SOLUTIONo Molarity (mol/L) M = number of moles of solute/number of liters of SOLUTIONo Molality (mol/kg) m=number of moles of solute/number of kg of SOLVENT- Colligative propertieso Physical properties which depend only on the number of solute particles in solution and not the kind of particleThese 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.o Colligative properties include: Lowering of vapor pressure Boiling point elevation Freezing point depression Membrane osmotic pressure- Vapor pressure lowering of a liquido Vapor pressure of liquids always decrease when NONVIOLATILE solutes (molecules orions) are dissolved in them- Raoult’s Lawo The vapor pressure of a solvent in a solution decreases as the mole fraction of the solvent decreaseso Psolvent = Xsolvent
View Full Document
Unlocking...