Gravimetric analysis Flashcards
What is gravimetric analysis?
A method used to analyse the mass of an element or compound present in a substance.
What are the 2 types of Gravimetric analysis?
Precipitation and volatilisation
In gravimetric analysis what happens to the substance?
It’s converted to another substance of known composition which can be isolated and purified
Conversion into another substance can occur through either?
Precipitation or volatilisation
In precipitation conversion, the substance undergoes a?
Precipitation reaction
The precipitate is?
Separated from the filtrate
Filtrate is tested to ensure?
The reaction has gone to completion
The precipitate is washed then…..
Dried to constant mass and then weighed
In volatilisation conversion what happens to the substance?
The substance is heated and any volatile products (often water) are evaporated. The substance is heated to constant mass and the final mass recorded
