Solubility IGCSE

The ratio of solute in a solution to the solvent or total solution is called ____________

• concentration

• solubility

• miscibility

• dilution

Why is trail mix considered a mixture?

• The particles are very small.

• The trail mix can be put together easily.

• Each parts keeps its own properties.

• All the colors and flavors fit well together.

Two substances have been combined physically and appear the same throughout is called a.........

• A heterogeneous mixture

• A homogeneous mixture

• An element

• A compound

We start with 2 glasses that have the same amount of solvent.
Glass 1 has 25 ml of salt and glass 2 has 50 ml of salt.
Which glass has a more dilute solution?

• Solution in Glass 1

• Solution in Glass 2

• Both solutions are equally diluted

• None of the above

What affect does temperature have on the solubility of solid?

• Increases the solubility

• Decreases the solubility

• Has no effect

• None of the above

Property of water where water molecules can "climb" structures
E.g. straws in juice glass make use of this property

• adhesion

• capillary action

• boiling point

• universal solvent

When a solvent contains as much of the solute as it can hold, the solution is said to be

• supersaturated

• diluted

• saturated

• unsaturated

How does a solution become supersaturated?

• dissolve lots of solute in it.

• dissolve a little solute in it. 

• dissolve more solute than you should be able to, by heating it or adding pressure

• dissolve a super amount of solvent in it. 

At 30°C, which substance has the lowest solubility?

• KNO3

• KBr

• NaCl

• Yb2(SO4)3

At 10°C, NaNO3's solubility is 80 g/100 g of H2O.
Based on this information, what would the solubility be in 50 g of H2O.

• 40

• 80

• 160

• 16