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Why must you let a solution evaporate at room temperature in order to get a salt?
Wiki User
∙ 13y ago
The solution does not have to be at room temperature. Depending on what the solution is, the solution must be heated to it's proper boiling point in order for it to evaporate. Everything has a melting, freezing and a boiling point, and the salt's melting and boiling point's are extremely high, therefore the salt will be left behind when the solution is evaporated, unless the solutions boiling point is higher then the salt's boiling point.
Wiki User
∙ 13y ago
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How do you evaporate pop?
If you have salty water for example, and you wish to have just the salt, you must heat the solution. As the solutution heats, the water will evaporate, but the salt will stay, as it cant be evaporated.
What factors affect whether a solution will form?
your solute and solvent make up your solution, so unless there is someting with temperature those 2 must be it
What temperature is the best for enzyme solution storage?
Enzymes are generally stored at -200C. They must be thawed quickly, used and immediately returned to the storage temperature
What is the name of Pressure that must be exerted onto a solution in order to prevent water from diffusing into that solution through a semipermeable membrane?
osmotic pressure
Where does water evaporate the fastest inside or out?
At higher temperatures, water will evaporate faster. So, depending on the temperature outside, it may evaporate faster, or slower, than inside.At higher temperatures, water will evaporate faster. So, depending on the temperature outside, it may evaporate faster, or slower, than inside.At higher temperatures, water will evaporate faster. So, depending on the temperature outside, it may evaporate faster, or slower, than inside.At higher temperatures, water will evaporate faster. So, depending on the temperature outside, it may evaporate faster, or slower, than inside.
What happens to the temperature when a liquid changes into a gas?
The temperate of the liquid must rise in order to evaporate into a gas.
Why must you read the temperature without removing the thermometer from the solution?
The thermometer reading will change from reading the solution temperature.
How do you evaporate pop?
If you have salty water for example, and you wish to have just the salt, you must heat the solution. As the solutution heats, the water will evaporate, but the salt will stay, as it cant be evaporated.
What must be stated when describing a saturated solution?
The temperature and what the solute is.
What must particles in a liquid overcome in order to break away from the surface and evaporate?
surface tension
Is a surfactant a suspension?
No. In order to work it must be in solution.
To increase the concentration of a solution?
In order to increase the concentration of a solution, you must add more solute or remove some solvent. You can remove solvent through evaporation.
How much heat is required to evaporate a gram of liquid water at room termperature?
First, the water must be raised to a temperature of 100 degrees - this requires 4.181 joule/(degree x gram). For example, if your "room temperature" is 20 degrees, multiply that by 8. Then you have to actually evaporate it - that costs 2260 joules/gram.
What factors affect whether a solution will form?
your solute and solvent make up your solution, so unless there is someting with temperature those 2 must be it
What must occur in order to form a solution?
The correct answer is as follows: One Substance Must Dissolve In Another.
Which water evaporates faster regular water salt water or sugar water?
Colligative propertiesDissolving something in water which does not evaporate easily will make the mixed solution less likely to evaporate than pure water. The more stuff you add to it, the less likely it will evaporate. Adding salt to water makes ions in solution and these ions reduce the vapor pressure of the solution compared to pure water. The lower the vapor pressure of a liquid or solution, the slower it will evaporate. This effect is also related to boiling point elevation and freezing point depression.The following is taken from the site listed to the left of this answer, but that page has a lot of additional information, and this is the most important part. This is the real reason the vapor pressure of salt solutions are decreased:"The reason dissolved solutes (such as salt) increase boiling point is that the solute must come out of solution in order for the water to boil. This costs entropy (the entropy of solution). Boiling is entropically driven, hence the reduction in the net entropy gain of boiling results in a higher temperature needed for the reaction to go. To put it without jargon: for a little packet of water with dissolved salt to turn to steam the salt atoms must, in the course of their random zooming about, ALL simultaneously leave the packet. This is not a likely event. It becomes more likely as the temperature (i.e. the average speed of zooming about) becomes higher, though, and at a certain temperature above the ordinary boiling point it becomes sufficiently likely to allow boiling in spite of the handicap. You can also see that the effect will naturally increase with the concentration of dissolved solutes (i.e. the number of salt atoms per packet that must simultaneously leave)."
What must be changed temperature or heat during condensation?
Assuming constant volume, in order to condense you must decrease temperature/heat.
