Researching chemistry Flashcards
1
Q
why use pipettes and burettes over measuring cylinder
A
more accurate for exact quantity
2
Q
methods of collecting gas?
A
gas syringe for soluble and insoluble gas
under water collection for insoluble gas
3
Q
what is distillation?
A
used to separate a liquid from another substance
heated in distillation flask until bp of lowest liquid is reached
cooled as it passes through the condenser turns back into liquid, can it be collected
4
Q
methods of heating
A
bunsen burner- heats fast not safe for flammable liquids
electric heating mantle-flammable liquids high temp
water bath-flammable liquids not above 100
5
Q
what is filtration
A
separate a solid from a liquid don’t overfill
