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Chemistry Topic 3 (Equations ([Range ÷ Mean] x 100, Concentration = Mass ÷…
Chemistry Topic 3
Equations
[Range ÷ Mean] x 100
Concentration = Mass ÷ Volume
Moles = Mass of Element ÷ RAM
Moles = Mass of compound ÷ RFM
Avagadro's Constant = 6.02 x 10^23
Conservation of Mass
Physical
Reactions => Usually
reversable
Chemical
Reactions => Usually
Irreversable
No atoms can be
created
or
destroyed
Number of Atoms of Reactant = Number of Atoms of Product
Masses/Moles in Reactions
Balance
the equation
Read
the question
Work out
the RAM/RFM of each compound/element
Learn and Apply
. Put RAM/RFM in ratios and adjust ratio for required mass value
Limiting Reactant
Reactant that isn't added in excess and controls the amount of product made.
Directly proportional to amount of product formed