Concepts Flashcards
Zero Order Rate Law:
[A]
First Order Rate Law:
ln[A]
Second Order Rate Law:
1/[A]
Cathode =
reduction
Anode =
oxidation
Electrons on the right means the reactions is an
Oxidation reaction
Electrons on the left means the reaction is a
Reduction reaction
Electrons flow from …
Areas of high electric potential to areas of low electric potential
High E(cell)
Easily reduced = good oxidizing agent
Low E(cell)
Easily oxidized = good reducing agent
N =
moles of electrons
F =
Faradays constant (96,485)
Oxidation =
Loss of electrons = reducing agent
Reduction
Gain of electrons = oxidizing agent
Oxidation number for elements
Always 0
Oxidation number for Group 1A metals
+1 in compounds (NaCl, K2O)
Oxidation number for Group 2A metals
+2 in all compounds ( CaCl2, MgO)
Oxidation number for Hydrogen
+1 in combination with nonmetals
-1 in compounds with metal and B
Oxidation number for Oxygen
-1 in Peroxides (H2O2, Na2O2)
-2 in all other compounds (except F-)
Oxidation number for Fluorine
-1 in all compounds
Oxidation number for Group7A(17)
-1 in compounds with metals or nonmetals
Oxidation number for Monoatomic ions
must match the charge on the ion
Oxidation number for neutral molecules
Must equal 0
Electrolytic Cell can be
+, - , or 0