CHEM-1000 Lecture Notes - Lecture 1: Kidney Stone Disease, Colloid, Osmotic Pressure
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What is a solution a mixture is a combinationof two or more substances homogeneous mixture composition isthe same throughout heterogeneousmixture composition isn"tuniform throughout. Solution a homogenous mixture with in which thedissolved particles are small usuallytransparent colloid a homogenousmixture with largerdissolved particles not clear. Suspension mixture with much larger particles will settle over time solute the substance in the mixture in lesseramount. Solvent thesubstance inthe mixture in greateramount the solutedissolves in the solventand is evenlydistributedthrough it aqueous solution solution in whichthe solvent is water. Whensomethingdissolvesthemolecules ofsolutepullawayfromeach otherand are surroundedbymoleculesof solvent if solvent is water hydration this is calledsolvation or this is a physicalchange there is a limit to how muchsolute candissolve in a givenamount of solvent called the solutes solubility. Kidneystones are causedby calcium salts becoming saturated and precipitating in our urine. Solids usually dissolve more easily in hot solvent opposite is true forgasses highertemperature givesgas molecules more energy emp atv e g s gas g.
