Sodium nitrate decomposes when heated. Which method is the best way to obtain crystals of sodium nitrate from aqueous sodium nitrate?
A - Sublimation
B - Distillation
C - Evaporation to dryness
D - Crystalization
My guess is either A or D cuz the other 2 options require heat. However, take into account that you still needa heat the liquid sodium nitrate until saturated should you want to perform crystalization and you'll consider about whether or not to put D as the answer. Because, as the question says, sodium nitrate decomposes when heated.
Originally posted by bonkysleuth:Sodium nitrate decomposes when heated. Which method is the best way to obtain crystals of sodium nitrate from aqueous sodium nitrate?
A - Sublimation
B - Distillation
C - Evaporation to dryness
D - Crystalization
My guess is either A or D cuz the other 2 options require heat. However, take into account that you still needa heat the liquid sodium nitrate until saturated should you want to perform crystalization and you'll consider about whether or not to put D as the answer. Because, as the question says, sodium nitrate decomposes when heated.
Sublimation - From solid to gaseous state. So this is out.
Left with option D.
Hope to hear from other's opinion.
My answer is D
i choose C.
evaporation to dryness need not be under heat.
jus leave it in the surroundings a few daes u will still get ur crystals intact.