CHEM 102 1nd Edition Lecture 1Outline of Last Lecture I. No previous lectureOutline of Current Lecture II. SolutionIII. Dissolution of solids in liquidsIV. Ionic compounds vs. covalent compoundsV. Dissolution of liquids in liquidsVI. Dissolution of gases in liquidsCurrent Lecture- Solution: a homogenous mixture of pure substance in which no settling occurso Consists of a solvent (what you have more of) and one or more solutes (what you have less of)o The solvent is the medium in which the solutes are dissolvedo The amount of solvent is greater than the amount of solute- Dissolution of solids in liquidso “Like dissolves like” (miscibility)-2 substances with similar structure attract each othero Polar dissolves polar and nonpolar and slightly polar will dissolve each other o Ionic salts with highly charged ions require a lot of energy to break apart- Dissolution of liquids in liquidso Liquids with similar structures are miscible- Ionic compounds vs. covalent compoundso Ionic compounds Composed of ions Held by their ionic bonds E- transmitted Metal cations Non metal anions Smallest unit: formula unito Covalent compounds Composed of atoms Held by covalent bondsThese 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. E- shared Non metals Smallest unit: molecule- Dissolution of gases in liquidso Like dissolves likeo The only gases that dissolve in water are Those capable of H-bonding (HF) Those that ionize (HCl, HBr, HI) Those that react with water (CO2 + H2O H2CO3
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