variable oxidtaion states Flashcards
those compunds with high oxidation state are usually what
oxidising agents so accept electrons
what about low oxidation states
tend to be reducing agents
what does it mean if there is a change in oxidation state
there is usually a redox reaction
what color is vanadium 5
yellow
what color is vanadium 4
blue
what color is vanadium three
green
what color is vanadium two
purple
where does vanadium come from
ammonium vanadate which is a white solid
what must happen to this
it must be dissolved in sulfuric acid as it doesn’t dissolve in water
what color is vo3 -
it s a white solutions
how can vanadium be reduced
using zinc metal in acidic conditions
What happens to the metal
T IS OXIDISED TO ZN2+
what conditions are required
acidic conditions using dilute h2so4, reducing agent of zinc and we use a stopper like cotton wool to stop oxidation of vanadium
