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Chemistry: Mathematical Equations (Volume of gas = Mass of gas / Mr of gas…
Chemistry: Mathematical Equations
Percentage mass of an element in a compound = ((Ar x number of atoms of that element) / Mr of the compound) x 100
Number of moles = mass / Mr
Mass measured in grams
Volume of gas = Mass of gas / Mr of gas x 24
At room temperature, one mole of any gas occupies 24 dm^3
Volume of gas measured in dm^3
mass of gas measured in g
Concentration =
mass of solute / volume of solvent
mass of solute measured in grams
volume of solvent measured in dm^3
number of moles of solute / volume of solvent
volume of solvent measured in dm^3
Number of moles = concentration x volume
m = cv
concentration measured in mol/dm^3
volume measured in dm^3
Atom economy = (relative formula mass of desired product / relative formula mass of all reactants) x 100
Percentage yield = (mass of product actually made / maximum theoretical mass of product) x 100