Chem 150 Unit 3 - Physical Properties amp; Intermolecular ：化工150单元3 -物理属性的amp；分子间.ppt

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Chem 150 Unit 3 - Physical Properties amp; Intermolecular ：化工150单元3 -物理属性的amp；分子间.ppt

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Chem150Unit3-PhysicalProperties

* * * * * * * * * * * * * * * * * * * * * * Glycerol is more viscous because its molecules are able to form more hydrogen bonds with its neighbors * Boiling cold water demo * * B) NO 1.4 atm (760Torr/atm) = 1064 Torr This is less than the pressure required to reach 110°C (1075 Torr), therefore it is an insufficient pressure to reach 120°C. (120-100)/(125-100)*(1741-760)+760=1544 Torr * 1.4 atm (760Torr/atm) = 1064 Torr This is less than the pressure required to reach 110°C (1075 Torr), therefore it is an insufficient pressure to reach 120°C. (120-100)/(125-100)*(1741-760)+760=1544 Torr * * The solutes and solvents can have just about any state in their pure form. * * * * Solubility is a combined property of the solute and the solvent. * Solubility is a combined property of the solute and the solvent. * The t-butanol can form some favorable interactions with water, it also forms some unfavorable interactions. * * * * * * * * * * States of Matter Simulation of Glycerol and PropaneDissolving in Water * Solutions Solubility is a measure of how much solute will dissolve in a solvent. Solubility depends on temperature. The solubility of gases decrease with increasing temperature The solubility of solids and liquids usually increase with increasing temperature. * Solutions When a solution is saturated, the solute dissolves and precipitates at the same rate. * Solutions In order form a solution to form the solute molecules have to be able to form similar noncovalents with the solute molecules as the solute molecules form with themselves the solute molecules form with themselves. * Solubility of Gases in Water Henry’s Law - The solubility of a gas in a liquid is proportional to the pressure of the gas over the liquid. The fizzing of soda when the cap is removed is an example of the lowered solubility of CO2 in water when it’s pressure above the soda is descrease. The solubility of CO2 in water is very high, because it can react with water to produce and even more soluble p