Writing the formulae of compounds using their ionic charges

Balancing equations both full and ionic ones

Significant figures used in calculations

Molar ratios and reacting masses

Limiting reagents (ignore the one in excess)

Percentage yield and atom economy

Ideal gas equation PV=nRT


Required practical 1 – you need to make a standard solution. Once made, you use this to complete a titration. Now you can calculate the unknown concentration. This practical tests lots of skills particularly to do with accuracy and following instructions carefully.

Back titrations

Empirical formulae