Electrolysis, paper 1. Flashcards
1
Q
Moles definition
A
- molecular mass inn grams.
- avagandros number of molecules in a pure substance.
2
Q
Avagandros number
A
6.023 X 10(23) atoms
3
Q
Electrolysis
A
- Separates a ionic solution in liquid or aqueous form.
- anions —> anode
- cations —>cathode.
4
Q
Anion
A
-
5
Q
Cation
A
+
6
Q
Anode
A
+
7
Q
Cathode
A
-
8
Q
Power source of electrolysis
A
DC
9
Q
Why preform electrolysis
A
- Coats things in metal.
- purifies elements.
10
Q
Imperial formular
A
This is the simplest ratio of elements in a compound.
11
Q
Oxidation
A
Loss of electrons, from negative charge to neutral.
12
Q
Reduction
A
Gain of electrons. Loss of posertive charge.
13
Q
The Harber process
A
N2 + (3)H2 = (2)NH3
- nitrogen gained from fractional distillation with air.
- Hydrogen from natural gas or water electrolysis
- ammonium used to replenish soil neutriants
