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.