Syllabus Objectives – Mole Concept

Self Assessment Checklist

Mole Concept I can do this!
(a) Define relative atomic mass, Ar.
(b) Define relative molecular mass, Mr.  
(c) Calculate relative molecular mass (Mr) of a molecular substance as the sum of relative atomic masses of all the atoms in its chemical formula.
(d) Calculate relative formula mass (Mr) of an ionic compound as the sum of relative atomic masses of all the atoms in its chemical formula.
(e) Calculate the percentage mass of an element in a compound from given information.
(f) Calculate empirical and molecular formulae of a compound from given information.
(g) Calculate the number of particles from the number of moles of particles and vice versa.
(h) Perform calculations involving the number of moles, mass and molar mass of a substance.
(i) Calculate the masses of reactants and products by using the mole ratio in a chemical equation.
(j) Perform calculations involving the number of moles of a gas and molar gas volume.
(k) Calculate the volumes of gaseous reactants and products using the mole ratio in a chemical equation. (one mole of gas occupies 24 dm3 at room temperature and pressure)
(l) Perform stoichiometric calculations involving the idea of limiting reactant.
(m) Apply the concept of solution concentration (in mol/dm3 or g/dm3) to process the results of volumetric experiments and to solve simple problems.
(n) Calculate % yield and % purity of a substance.