Card Set Information
Advanced Higher Chemistry - Unit Two - Stoichiometry
What is a standard solution?
A solution of accurately known concentration
What can a standard solution be prepared from?
A primary standard
What characteristics must a primary standard have?
High state of purity
Reasonably high formula mass
What is the equivalence point of a reaction?
The point at which the reaction is just complete
What is the 'end point' of a reaction?
The point at which a change is observed and associated with the equivalence point
What is an indicator?
A substance which changes colour at the end point
What is EDTA and what is it used for?
EDTA is an important complexometric reagent and can be used to determine the concentration of metal ions such as nickel (II)
Why is potassium manganate a useful reactant in redox titrations?
As it can act as its own indicator