Stoichiometry IB Syllabus > Stoichiometry > Moles

These notes were written for the old IB syllabus (2009). The new IB syllabus for first examinations 2016 can be accessed by clicking the link below.

IB syllabus for first examinations 2016

Mass and Gaseous Volume Relationships in Chemical Reactions

1.4.1: Calculate stoichiometric quantities and use these to determine experimental and theoretical yields. Mass is conserved in all chemical reactions. Given a chemical equation and the mass or amount (in moles) of one species, calculate the mass or amount of another species.



1.4.2: Determine the limiting reactant and the reactant in excess when quantities of reacting substances are given. Given a chemical equation and the initial amounts of two or more reactants: identify the limiting reactant calculate the theoretical yield of a product calculate the amount(s) of the reactant(s) in excess remaining after the reaction is complete.


1.4.3: Apply Avogadro's law to calculate reacting volumes of gases.

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