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Chemistry B
Chemical analysis
OCR
J258
Chemical analysis
Understand methods for analysing chemicals for quality control and component identification.
Separation and purity
8 Subtopics
1
Formulations
Revise
2
Purity definition
Revise
3
Melting point and purity
Revise
4
Chromatography phases
Revise
5
Interpreting chromatograms
Revise
6
Chromatographic methods
Revise
7
Separation processes
Revise
8
Suggesting purification techniques
Revise
Composition analysis
7 Subtopics
1
Sampling
Revise
2
Flame tests interpretation
Revise
3
Flame tests technique
Revise
4
Tests for cations and anions
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5
Emission spectroscopy
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6
Advantages of instrumental methods
Revise
7
Interpreting charts
Revise
Stoichiometry calculations
14 Subtopics
1
Conservation of mass
Revise
2
Mass changes in non-enclosed systems
Revise
3
Relative formula masses
Revise
4
Avogadro constant and the mole
Revise
5
Mass to moles relationship
Revise
6
Stoichiometry and limiting reactants
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7
Calculations from equations
Revise
8
Arithmetic computation
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9
Standard form calculations
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10
Changing subject of equation
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11
Theoretical mass
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12
Percentage yield
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13
Reasons for low yield
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14
Molar gas volume
Revise
Solution measurements
9 Subtopics
1
Qualitative vs quantitative analysis
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2
Concentration in g/dm³
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3
Molar concentration
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4
Neutralisation
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5
Ions in acids and alkalis
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6
Neutralisation reaction
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7
Titration procedure
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8
Titration data quality
Revise
9
Titration calculations
Revise
