Chemistry Equations 0.0 / 5 ? ChemistryEquations- All topicsGCSEAQA Created by: 13clarkenCreated on: 08-04-18 14:29 ...= Sum of (isotope amount x isotope mass number)/ Sum of amount of all isotopes Relative Atomic Mass 1 of 10 Surface area to volume ... = Surface Area/ Volume Ratio 2 of 10 ... of an element in a compound= Relative Atomic Mass x Number of atoms of that element/ Relative formula mass of the compound x 100 Percentage Mass 3 of 10 ...= Mass in g (of an element or compound)/ Relative Formula Mass (of the element or compound) Number of moles 4 of 10 ...= Mass of gas/ Relative formula mass of gas x 24 Volume of Gas 5 of 10 ...= Mass of solute/ Volume of solvent Concentration 6 of 10 ...= Number of moles of solute/ Volume of solvent Concentration 7 of 10 ...= Relative formula mass of desired products/ Relative formula mass of all reactants x 100 Atom economy 8 of 10 ...= Mass of product actually made/ maximum theoretical mass of product x 100 Percentage Yield 9 of 10 ...= Amount of reactant used or product formed/ Time Rate of Reaction 10 of 10
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