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1582552
AS Chemistry Unit 1 Module 1
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A Levels OCR Chemistry A Mind Map on AS Chemistry Unit 1 Module 1, created by awesome.lois on 11/04/2014.
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AS Chemistry Unit 1 Module 1
Moles
Moles (n) = mass (g) / Mr
Moles (n) = volume (dm^3) / 24
Moles (n) = volume (dm^3) X concentration (mol/dm^3)
Acids to Remember
Hydrochloric Acid (HCl)
Nitric Acid (HNO3)
Carbonic Acid (H2CO3)
Sulfuric Acid (H2SO4)
Phosphoric Acid (H3PO4)
Complex Ions
Ammonium: +1
Hydroxide: -1
Nitrate: -1
Nitrite: -1
Hydrogen Carbonate: -1
Sulfate: -2
Sulfide: -2
Dichromate: -2
Carbonate: -2
Phosphate: -3
Relative Mass Definitions
Relative Isotopic Mass
Relative Atomic Mass
Relative Molecular Mass
Relative Formula Mass
Acids, Bases, Alkalis, Salts
Acids
Proton Donor
Sulphuric Acid
Hydrochloric Acid
Nitric Acid
Bases
Proton Acceptor
Magnesium Oxide
Magnesium Hydroxide
Ammonia
Alkalis
A type of base that dissolves in water forming hydroxide ions
Sodium Hydroxide
Potassium Hydroxide
Ammonia
Salts
Neutralising acids
Cation
Anion
Ammonium salts: artificial fertilisers
Equations for this
Base + acid -> salt + water
Alkali + acid -> salt + water
Metal + acid -> salt + hydrogen
Carbonate + acid -> salt + water + carbon dioxide
Water of Crystalisation
Stoichiometry
Emperical Formula
Molecular Formula
Anhydrous
Hydrated
Oxidation and Redox
OIL RIG
Loss or gain of electrons
Reducing Agent
Oxidising Agent
Half equations
Redox = both oxidisation and reduction
Atoms involved in bonding
Rules
Elements = 0
Compounds = 0
Ions = charge on the ion
Hydrogen = +1, except in metal hydrides
Group 1 metals = +1
Fluorine = -1 ALWAYS
Group 2 metals = +2
Aluminium = +3 ALWAYS
Oxygen = -2, except in H2O2 (-1)
Calculate all other numbers from rules above.
Group 7 = -1 unless with O or G7, where the O or G7 controls it
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