The mole and the Avogadro constant

What the syllabus asks of you

• State that concentration can be measured in 5 Calculate stoichiometric reacting masses, g / dm3 or mol / dm3 limiting reactants, volumes of gases at r.t.p., volumes of solutions and concentrations of solutions expressed in g / dm3 and mol / dm3, including conversion between cm3 and dm3 6 Use experimental data from a titration to calculate the moles of solute, or the concentration or volume of a solution 7 Calculate empirical formulae and molecular formulae, given appropriate data 8 Calculate percentage yield, percentage composition by mass and percentage purity, given appropriate data