CHEM-C 243 Lecture Notes - Lecture 11: Intermolecular Force, Osmosis, Chemical Equation
Document Summary
Chapters 4 & 11 notes- properties of solutions. Section 4. 1- water, the common solvent: one of most important substances on earth, can dissolve many different substances, polar molecule because of unequal charge distribution. Attracts ions, other dipoles; only things that do not dissolve are those that are extremely nonpolar: toluene is almost opposite of water- very nonpolar, dissolution of a solid in a liquid. Water molecules become attached to ions by ion-dipole attraction. Surrounds ions to keep them from ever rebonding to opposite ions. Only way to get ions back together is to remove solvent. In suspensions, everything is scattered evenly throughout, but does not stay that way forever. Section 4. 2- the nature of aqueous solutions: strong and weak electrolytes: solute- substance being dissolved, solvent- liquid water, electrolyte- substance that, when dissolved in water, produces a solution that can conduct electricity. When applied to electrical circuit with power source:
