Quantitative Chemistry 0.0 / 5 ? ChemistryCalculations, moles and yieldGCSEAQA Created by: LK2001Created on: 13-04-17 12:25 The average mass of atoms of an element, taking into account the mass and amount of each isotope it contains. Atomic Mass 1 of 15 The sum of the relative atomic masses of each of the atoms in a compound. Formula Mass 2 of 15 The smallest unit of an element. Atom 3 of 15 Two or more (chemically bonded) atoms. Molecule 4 of 15 Two or more elements bonded together. Compound 5 of 15 Number of moles x the Mr/Ar = Mass 6 of 15 The rule which states the total mass of the reactants must equal the total mass of the product: ______of Mass Conservation 7 of 15 The way to measure volumes precisely. Titrations 8 of 15 When the amount of a reactant is greater than the amount that can react. Excess 9 of 15 The reactant which is not in excess and, therefore, determines the amount of product formed. Limiting 10 of 15 1 dm(cubed) in cm(cubed) 1000 11 of 15 A way of measuring what percentage of the mass of all the atoms in the reactants ends up in the desired product. Atom Economy 12 of 15 The law which states that equal volumes of gas (providing they have the same pressure and volume, will have the same number of particles or molecules. Avogadros 13 of 15 The amount of product formed in a reaction. Yield 14 of 15 Used to compare tha actual yield obtained from a reaction with the maximum theoretical yield. Percentage Yield 15 of 15
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