Lecture : Gen Chem Lecture-5
Document Summary
Inexpensive: can dissolve a vast number of substances, many substances dissociate into ions, aqueous solutions are found everywhere, seawater, living systems, strong. Fair partially ionizes. conductor of electricity: non-electrolyte does not. Poor dissociate. conductor of electricity: essentially all soluble ionic compounds and only a relatively few molecular compounds are strong electrolytes, most molecular compounds are either nonelectrolytes or weak electrolytes. Precipitation reactions: soluble ions can combine to form an insoluble compound. Acids: arrhenius acids provide h+ in an aqueous solution, strong acids completely ionize, weak acid ionization is not complete, bronsted lowry. Acids are proton donors: h+ is transferred from one to another, arrhenius base provide oh- in aqueous solution, bronsted lowry base are proton acceptors, water behaves as proton donor (b-l acid), most basic substances are weak bases. Acidic and basic solution: pure water is partially ionized. ]water=1x10-7m: an acidic sol has greater [h+] than [h+] of water, basic sol has greater.
