Solutions Practice Quiz

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

• KNO3

• KBr

• NaCl

• Yb2(SO4)3

At which temperature do KBr and KNO3 have the same solubility?

• 60

• 55

• 50

• Never

The solubility of Yb2(SO4)3 ________________ with added temperature.

• increases

• decreases

• remains the same

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

Identify if the following solution would be saturated, unsaturated, or supersaturated: 103 g KBr at 70'C.

• Unsaturated

• Saturated

• Supersaturated

Identify a method to decrease the dissolving rate of a solution:

• decrease the temperature

• add KE

• stir the solution

• increase the temperature

Tags

NGSS.HS-PS1-5

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 solvent in it. 

Tags

NGSS.HS-PS1-5

__________ are made up of solutes and solvents.

• Solutions
• Suspensions
• Heterogeneous Mixtures
• Pure Substances

Describe a solute.

• part of solution present in largest amount
• gets dissolved
• water
• surrounds and breaks apart

Ammonium nitrate

• soluble in water

• insoluble in water

• almost insoluble (slightly soluble)