I don't know that you can except in some circumstances.
First, most gases are not very soluble (some exceptions are NH3, SO2, SO3 etc) so unless it reacts with water and is quite soluble, you don't expect it to be a gas.
Most liquids are not soluble in H2O unless they are low molecular weight organic materials such as methanol, ethanol, etc.
So if the solubility curve shows KNO3 to be quite soluble in water the odds are that it is a solid. I'm surprised a the answer choices. I would have thought the choices to be ionic, covalent, can't tell.
5. On the basis of a solubility curve for KNO3 what type of substance would you expect KNO3 to be?
Choices: solid
liquid
gas
It is impossible to tell.
I don't want the answer. All I want to know is, can you tell whether something is a liquid/solid/gas just by using a solubility curve? If so, how?
1 answer