lol i just know that an OVEN is used to dry the precipitate. The constant mass shows that now only the solid is left-all solvent that was adding to the mass is removed.Ok so in a Paper 5 , in a planning question, they asked us to mention how we would dry the precipitate. In the Answer scheme, the gave a few methods along with "NOT heat or the use of a Bunsen..."
The next question asked how we would ensure the precipitate was thoroughly dried. The answer went like
"The drying process should be repeated to constant mass . ALLOW HEAT/REHEAT to constant mass/weight."
What is this cwap?
n yes... paper 5 chem is crap