The ultimate A level chemistry resource
We can link any two half cells together to form an electrochemical cell. A high resistance voltmeter prevents current (electrons)
Continue readingDetermining the potential difference of an electrochemical cell
A buffer is defined as a solution that is able to resist changes in pH when small amounts of acid
Continue readingWhat is a buffer and how do I calculate its pH?
Limiting reactant problems follow on directly from reacting mass calculations. In these questions, you have to figure out which reactant
Continue readingDetermining the limiting reactant in a reaction
Often students arrive at A level knowing how to calculate the number of moles of a substance but with a