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CH302Exam2Rev_Sutcliffe - Some useful things to know for...

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Some useful things to know for Exam 1: GENERAL earlier concepts from CH301 are used in but not examined directly: Due to the differing level of coverage in CH301, there is some overlap in this first exam. DON'T FORGET YOUR NON-PROGRAMMABLE CALCULATOR... Chapter 17: Be able to calculate/use concentrations using molarity, molality, mole fraction and percent by mass(weight). Solubility: Have a general understanding of the three processes involved: solute-solute, solvent- solvent, solute-solvent. Remember the first tow will be endothermic, the second will be exothermic, so overall Δ H solution can come out to be exo- or endothermic. Be able to comment based on this and your knowledge of intermolecular forces from CH301, Ch.16. Remember "like dissolves like". Be able to recognize polar molecules or parts of molecules that permit H-bonding between molecules, and thus predict what would be soluble or insoluble in a polar or nonpolar solvent. Solubility of gases: what does Henry's Law predict? Be able to use Raoults Law to find VP for a solvent with a nonvolatile solute or for two volatile solvents. Colligative properties:
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