Calculations for AS and A level Chemistry
Being confident in tackling different types of mole calculation is the foundation upon which much of A level chemistry stands
The ultimate A level chemistry resource
Being confident in tackling different types of mole calculation is the foundation upon which much of A level chemistry stands
This is not just more exam questions with exam board style mark schemes. You can find plenty of those
The model of the atom we used at GCSE is not sufficient for A level but it is really important
Group 7 consists of the elements fluorine, chorine, bromine, iodine and astatine, and they are known as the halogens. All
When we consider the elements of Group 2 we are invariably only investigating magnesium, calcium, strontium and barium. All isotopes
Chromatography is all about separating a mixture into its constituents by distributing them between two phases – a mobile phase
Continue readingEverything you need to know about chromatography
Primary and secondary alcohols are oxidised by common oxidising agents such as potassium manganate(VII), KMnO4, or acidified sodium dichromate(VI), Na2Cr2O7.
And why do some perfectly plausible reactions just not happen? Acyl chlorides readily react with hydroxide ions to form a
Alcohols are organic molecules containing the OH, hydroxyl, functional group and are named after their parent alkane … If the
Continue readingHow to name an alcohol, an alkoxide or an ether
There are number of ways to make a halogenoalkane, each of which has its own advantages and disadvantages. Halogenation of
Quenching We can stop a chemical reaction in its tracks using a practical technique called quenching. There are two ways
Continue readingExperimental methods for following the rate of a reaction
If we were to measure the change in concentration of a reactant over time and then plot a graph of
There are many reactions which happen as the stoichiometric (chemical) equation would suggest … e.g. the reaction between chlorine radicals
Continue readingReaction mechanisms, intermediates and the rate determining step