Supersaturated

Using the solubility curve decide whether 50g of NaCl dissolved in 100 of water at 60°C is unsaturated, saturated or supersaturated.

• saturated

• unsaturated

• supersaturated

Decide whether 50g of KCl dissolved in 100g of water at 50°C is saturated, unsaturated or supersaturated.

• saturated

• supersaturated

• unsaturated

Tags

NGSS.MS-PS1-2

If you add a crystal to a solution and the solution crystalizes is this solution saturated, unsaturated or supersaturated?

• saturated

• unsaturated

• supersaturated

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. 

• dissolve a super amount of solvent in it. 

What is a supersaturated solution?

• A solution that contains more dissolved solute than it can theoretically hold at a given temperature.

• A solution that contains less solute than it can hold at a given temperature.

• A solution that contains exactly the amount of solute it can hold at a given temperature.

• A solution that contains no solute.

Which of the following methods can be used to create a supersaturated solution?

• Cooling a saturated solution slowly.

• Heating a saturated solution quickly.

• Adding more solvent to a saturated solution.

• Stirring a saturated solution vigorously.

What happens when a seed crystal is added to a supersaturated solution?

• The excess solute precipitates out of the solution.

• The solution becomes more supersaturated.

• The solute dissolves further.

• The solution remains unchanged.

In a lab experiment, a student heats a saturated solution and then cools it slowly. What is the likely outcome?

• The solution becomes supersaturated.

• The solution becomes unsaturated.

• The solution remains saturated.

• The solute evaporates.

Tags

NGSS.MS-PS1-4

Which of the following is an example of a supersaturated solution in everyday life?

• Rock candy formation.

• Saltwater in the ocean.

• Sugar dissolved in coffee.

• Vinegar in salad dressing.

Why is a supersaturated solution considered unstable?

• Because it contains more solute than it can hold, leading to precipitation.

• Because it contains less solute than it can hold, leading to dissolution.

• Because it has an equal amount of solute and solvent.

• Because it has no solute.