Calculate relative formula mass given relative atomic masses

Calculate the formulae of simple compounds from reacting masses or percentage composition and understand that these are empirical formulae

Deduce:

a) the empirical formula of a compound from the formula of its molecule
b) the molecular formula of a compound from its empirical formula and its relative molecular mass

Describe an experiment to determine the empirical formula of a simple compound such as magnesium oxide

Explain the law of conservation of mass applied to:

a) a closed system including a precipitation reaction in a closed flask
b) a non-enclosed system including a reaction in an open flask that takes in or gives out a gas

Calculate masses of reactants and products from balanced equations, given the mass of one substance

Calculate the concentration of solutions in g dm^-3

Recall that one mole of particles of a substance is defined as:

a) the Avogadro constant number of particles (6.02 × 10²³ atoms, molecules, formulae or ions) of that substance
b) a mass of 'relative particle mass' g

Calculate the number of:

a) moles of particles of a substance in a given mass of that substance and vice versa
b) particles of a substance in a given number of moles of that substance and vice versa
c) particles of a substance in a given mass of that substance and vice versa

Explain why, in a reaction, the mass of product formed is controlled by the mass of the reactant which is not in excess

Deduce the stoichiometry of a reaction from the masses of the reactants and products