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Brown's Chemistry  GCSE/IGCSE/GCE (basic A level)
O Level Online Chemical Calculations
14.
INDEX of other GCSE and basic A level chemical calculations
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Index of all my online chemical calculation
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All my
GCSE/IGCSE/US grade 810 Chemistry Revision
notes
Advanced UK A/AS level, IB and US grade 1112 preuniversity chemistry
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14.
Other miscellaneous chemical calculations
14.1 Percentage purity of a chemical reaction product
14.1
% purity of a product and assay calculations
14.2a Percentage yield of the product of a reaction and why
not 100% in reality
14.2a
% reaction yield and theoretical yield calculations
and why you can't actually get 100% yield in practice
14.2b
The
Atom economy of a chemical reaction
14.2b
atom economy calculations
14.3
Dilution of solutions calculations 
calculating
dilutions  volumes involved etc.
14.3
dilution of solutions calculations
14.4 Water of crystallisation
in a crystallised salt
14.4
water of crystallisation
calculations
14.5
Calculation of quantities required for a chemical reaction
14.5
how
much of a reactant is needed? calculation of quantities required, limiting
reactant quantities
See also
Chemical &
Pharmaceutical Industry Economics & Sustainability, Life Cycle
Assessment, Recycling
Above is typical periodic table used in GCSE sciencechemistry specifications in
doing chemical calculations,
and I've 'usually' used these values in my exemplar calculations to cover most
syllabuses
OTHER CALCULATION PAGES

What is relative atomic mass?,
relative isotopic mass and calculating relative atomic mass

Calculating relative
formula/molecular mass of a compound or element molecule

Law of Conservation of Mass and simple reacting mass calculations

Composition by percentage mass of elements
in a compound

Empirical formula and formula mass of a compound from reacting masses
(easy start, not using moles)

Reacting mass ratio calculations of reactants and products
from equations
(NOT using
moles) and brief mention of actual percent % yield and theoretical yield,
atom economy
and formula mass determination

Introducing moles: The connection between moles, mass and formula mass  the basis of reacting mole ratio calculations
(relating reacting masses and formula
mass)

Using
moles to calculate empirical formula and deduce molecular formula of a compound/molecule
(starting with reacting masses or % composition)

Moles and the molar volume of a gas, Avogadro's Law

Reacting gas volume
ratios, Avogadro's Law
and GayLussac's Law (ratio of gaseous
reactantsproducts)

Molarity, volumes and solution
concentrations (and diagrams of apparatus)

How to do acidalkali
titration calculations, diagrams of apparatus, details of procedures

Electrolysis products calculations (negative cathode and positive anode products)

Other calculations
e.g. % purity, % percentage & theoretical yield, dilution of solutions
(and diagrams of apparatus), water of crystallisation, quantity of reactants
required, atom economy
(this page)

Energy transfers in physical/chemical changes,
exothermic/endothermic reactions

Gas calculations involving PVT relationships,
Boyle's and Charles Laws

Radioactivity & halflife calculations including
dating materials
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