3 Quantitative chemistry

Chemical measurements, conservation of mass and the quantitative interpretation of chemical equation

Conservation of mass and balanced chemical equations

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Relative formula mass

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Mass changes when a reactant or product is gas

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Chemical measurements

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Use of amount of substance in relation to masses of pure substance

Moles

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Amounts of substances in equations

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Using moles to balance equations

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Limiting reactants

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Concentretion of solution

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Yield and atom economy of chemical reactions

Percentage yield

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Atom economy

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Using concentrations of solutions in mol/dm3

Use of amount of substance in relation to volumes of gases