Electrochemistry exam question booklet
This is not just another set of exam questions with exam board style mark schemes. You can find plenty of
The ultimate A level chemistry resource
This is not just another set of exam questions with exam board style mark schemes. You can find plenty of
The standard electrode potential for a half cell means exactly that – everything happening under standard conditions (298K, 100 kPa,
Continue readingUsing the Nernst equation to calculate the electrode potential of a half cell
Fuel cells commonly use the reaction between hydrogen and oxygen to produce a voltage, with water being the only waste
Modern storage cells (batteries) can be divided into the non-rechargeable kind (primary cells) and the rechargeable kind (secondary cells). Primary
The spontaneity or feasibility of a reaction can be described by both a positive Ecell⦵ value or a negative value
The rusting of iron can be summarised by the equation 4 Fe(s) + 3 O2(g) + H2O(l) ⇾ 2 Fe2O3•xH2O(s)
A redox reaction consists of two half reactions – an oxidation and a reduction reaction. If we take a pair
Continue readingPredicting the feasibility of redox reactions using standard electrode potentials
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
If we place a strip of a metal such as zinc into a beaker containing zinc sulphate (the electrolyte) an