Experimental programme & IA
Boiling points of mixtures
This practical looks at how the intermolecular forces between two different liquids affect the boiling point of a mixture made of the two liquids as the ratio of the two liquids in the mixture changes....
Experimental programme & IA
Reactions of halogens & halide ions
This practical looks at some of the chemical properties of chlorine, bromine and iodine including their redox reactions and also some of the reactions of their ions in aqueous solution. The physical properties...
Experimental programme & IA
Elements & oxides of the third period
Topic S3.1 Periodic table - classification of elements requires all students to cover some of the physical and chemical properties of the elements, in particular some of the general trends across periods...
Experimental programme & IA
3-D molecular modelling
This is an exercise to get your students to build three-dimensional representations of simple molecules and ions rather than just make or see virtual models on a two-dimensional screen. This will help...
Experimental programme & IA
Determining the Mr of an unknown gas
This practical requires students to devise their own experiment using their knowledge and understanding of the gas laws and the definition of molar molecular mass to find the molecular mass of an unknown...
Experimental programme & IA
Formula of magnesium oxide
This practical uses combustion and gravimetric analysis to determine the empirical formula of magnesium oxide and trains your students in questioning the underlying assumptions made in the procedure....
Experimental programme & IA
Determining the mass of argon in a room
This is a simple exercise but students can learn a lot about many of the skills required by the syllabus including calculating individual and overall uncertainties and percentage error. This is a simple...
Experimental programme & IA
Iodination of propanone
This practical, which studies the rate of the reaction between propanone and iodine in the presence of an acid, contains a lot of good chemistry. Your students will determine the rate equation for this...
External assessment
Practice HL Paper 2 ('mock') exams
This section consists of three different practice ('mock') Paper 2 exams. The questions are all new and unique to this site. All the questions come with fully worked model answers and an analysis showing...
External assessment
Practice SL Paper 2 ('mock') exams
This section consists of three different practice ('mock') Paper 2 exams. The questions are all new and unique to this site. All the questions come with fully worked model answers and an analysis showing...