CAS CH 203 Lecture Notes - Lecture 20: Ionic Compound, Solubility Equilibrium, Sodium Chloride
Document Summary
Reading for today: sections 9. 8 - 9. 13 (8. 8-8. 13 same in 4th ed. ) on solubility; sections 11. 1. 11. 2, 11. 4-11. 6 (10. 1-10. 2, 10. 4-10. 6 in 4th ed. ) on acids and bases. Reading for lecture #21: sections 11. 7-11. 9, 11. 11-11. 13 (10. 7 -10. 9, 10. 11 10. 13 in 4th ed). Classification of acids and bases: solutions and solubility. Solvent: the substance that does the dissolving (i. e. water) Polar water molecules ions at the surface of the salt"s crystal lattice, prying some of the na+ and cl- ions away. Stirring can the process by bringing m water molecules to the surface of the solid, and taking more hydrated ions away. ore free. Ksp = [na+][cl-] where sp stands for solubility product is a measure of the dissolution of an ionic solid in water. Note nacl does not appear in the expression since it is a solid. Water molecules form hydrogen bonds to the glucose molecules near the surface of a glucose crystal.
