Solutions And solubility Flashcards
What is a solution?
A solution is made when a solute is dissolved in a solvent.
What is the difference between a concentrated solution and a dilute solution?
A concentrated solution has more solute particles dissolved, while a dilute solution has fewer solute particles dissolved.
What does a concentrated solution of sugar look like?
A concentrated solution of sugar has a lot of sugar particles dissolved in it.
What does a dilute solution of sugar look like?
A dilute solution of sugar has fewer sugar particles dissolved in it.
What is a soluble solid?
A solid that dissolves in a solvent such as water is said to be soluble.
Give examples of soluble solids.
Sodium chloride (common salt) and sugar are soluble.
What is an insoluble solid?
A solid that will not dissolve in water is insoluble.
Give an example of an insoluble solid.
Iron filings are insoluble in water.
What is a saturated solution?
A saturated solution occurs when you keep adding a soluble solid to water, and there comes a point where no more of the solid will dissolve.
Are all soluble substances equally soluble?
No, some soluble substances are more soluble than others.
How does the solubility of sodium chloride compare to lead chloride?
Sodium chloride has greater solubility than lead chloride.
How much sodium chloride can dissolve in 100 cm³ of water compared to lead chloride?
You can dissolve a lot of sodium chloride in 100 cm³ of water, but only a tiny amount of lead chloride.
How do you compare the solubility of different solutes?
To compare the solubility of different solutes, you must measure how much of each solute will dissolve in a known amount of solvent.
What is a saturated solution?
A saturated solution is when no more solute can dissolve in the solvent at a given temperature.
How does temperature affect the solubility of most solutes?
Most solutes dissolve more quickly and easily in hot water than in cold water because the particles have more energy, which causes them to vibrate and move.
