Separation Techniques
Atomic Structure
Percentage Composition
Atom Counting
Ionic Formulae
100
Technique that separates a solid from a liquid and usually uses a funnel
Filtration
100
What is the centre of an atom called?
Nucleus
100
Carbon in CH4
75%
100
H2O
2 x Hydrogen
1 x Oxygen
1 x Oxygen
100
Na+
Cl-
Cl-
NaCl
200
When gas turns to liquid
Condensation
200
The positively charged particle of an atom (+)
Proton
200
Hydrogen in H2O
11%
200
NaCl
1x Sodium
1x Chlorine
1x Chlorine
200
Al3+
Cl-
Cl-
AlCl3
300
Distillation
300
The particles that orbit around the centre.
Electrons
300
Nitrogen in NH3
82%
300
C5H12
5x Carbon
12x Hydrogen
12x Hydrogen
300
Mg 2+
NO3 -
NO3 -
Mg(NO3)2
400
Most useful when separating inks, dyes, or other colouring agents.
Chromatography
400
No charge.
Neutron
400
Potassium in K2O
83%
400
Fe(OH)2
1x Iron
2x Oxygen
2x Hydrogen
2x Oxygen
2x Hydrogen
400
Fe3+
OH-
OH-
Fe(OH)3
500
What is the equation to find the Rf value?
Rf = distance from origin to solute / distance from origin to solvent front
500
The maximum amount of e- that can go in the first shell.
2
500
Sodium in Na2CO3
43%
500
(NH4)2Cr2O7
2x Nitrogen
8x Hydrogen
2x Chromium
7x Oxygen
8x Hydrogen
2x Chromium
7x Oxygen
500
Na+
NO3 2-
NO3 2-
Na2NO3