Today started off interesting. The class was shown an experiment. Sugar and sulphuric acid was combined and created something mutant-like...and it smelled. The product of the two was solid carbon! WHOA!
C12H22O11 + H2SO4 -----> C(s) + H2O + S
This brought us to today's lesson about ACIDS and BASES
Acids: - Solid, liquid, or gas at SATP
- Form conducting aqueous solutions
- Turn blue litmus red
- Dissolve in water and produces H+
- Taste = sour
SATP = 25*c OR 100kPa
Bases: - Turn red litmus blue
- Slippery
- Non-conductive
- Dissolve in water to produce OH-Naming Acids
- Aqueous
- Hydrogen compounds are acids
- HCl (aq) ---> Hydrochloric Acid
- H2SO4 (aq) ---> Sulphuric Acid
- Hydrogen appears first in the formula unless part of a polyatomic group
CH3COOH(aq) ---> Acetic Acid
* Classical rules use suffix -ic and/or prefix hydro- (Hydrochloric Acid)
* IUPAC system uses (aq) hydrogen compound
HCl(aq) ---> Aqueous Hydrogen Chloride
Naming Bases
- (For now) All bases ----> aqueous solutions of ionic hydroxides: NaOH, Ba(OH)2
- Cation name followed by: Sodium Hydroxide, Barium Hydroxide
WATCH THIS!
http://www.youtube.com/watch?v=zTLiJE-j1-I
NEXT CLASS: LAB
HOMEWORK: Read lab, p. 252-253 #1-9,28,34
TEST ON OCTOBER 15th
No comments:
Post a Comment