Welcome to the Quiz!
This quiz contains 4 questions from a mix of 1 subtopics.
What is the purpose of filtering the solution?
to remove impurities
to increase the yield of crystals
to speed up the evaporation process
to prevent the solution from boiling over
|
Where should the evaporating basin be left after evaporation?
in a warm place
in direct sunlight
in a cool place
in a hot oven
|
What is the purpose of patting the crystals dry?
to prevent the crystals from sticking together
to remove excess water
to slow the crystallisation process
to increase the purity of the crystals
|
Which piece of equipment is used to heat the sulfuric acid?
bunsen burner
glass rod
filter funnel
evaporating basin
|