Transcript Notes on Acids and Bases

NOTES ON ACIDS
AND BASES
http://www.youtube.com/watch?v=M8tTELZD5Ek
PROPERTIES OF ACIDS:
 Taste
sour
 Contains
H+, (the more H+, the stronger
the acid)
 Very
reactive
USES OF ACIDS:
 Metal
cleaners
 Batteries
 Digest food- found in our stomachs
 Foods
 Paints
 Plastics
EXAMPLES OF ACIDS:
 Hydrochloric
acid (HCl)- in stomach
 Citric
acid (in citrus fruits like lemons)
 Acetic
acid (vinegar)
PROPERTIES OF BASES:
 Taste
bitter
 Contains
the base)
 Slippery
OH- (the more OH-, the stronger
when wet
USES OF BASES:
Cleansers
 Drain cleaners
 Soap
 Shampoo
 Laundry detergent

EXAMPLES OF BASES:
 Sodium
hydroxide (NaOH)
 Ammonia
 Lime
water Ca(OH)2
PH
SCALE
Ranges from 0-14
 Numbers 0-6 represent acids
 7 is neutral
 Numbers 8-14 represent bases

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
strongest acid
strongest base
PH
SCALE
 As
you move from pH 0 to pH 14, the
concentration of H+ DECREASES (10 times
each number)
 As
you move from pH 0 to pH 14, the
concentration of OH- INCREASES (10 times
each number)
 Ex:
A substance with pH3 is 100 times stronger
acid than a substance with pH 5. A substance
with pH 8 is 100 times weaker base than a
substance with pH 10.