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Formula Sheets
/ Chemistry
Chapter 20
Surface Chemistry
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Adsorption
Catalysis
Colloids
Adsorption
Freundlich
m
x
=
k
p
1/
n
(
n
>
1
)
,
lo
g
m
x
=
lo
g
k
+
n
1
lo
g
p
physisorption: weak, reversible, multilayer
;
chemisorption: strong, specific, monolayer
Catalysis
a catalyst changes the path (lower
E
a
), not
Δ
H
or
K
Colloids
Hardy–Schulze rule
coagulating power rises with the charge of the opposite ion:
Al
3
+
>
Ba
2
+
>
Na
+
gold number: smaller means a better protective colloid
Chemical Kinetics
General Principles and Processes of Isolation of Metals