Solubility

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

• KNO3

• KBr

• NaCl

• Yb2(SO4)3

Tags

NGSS.MS-PS1-2

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

• 60

• 55

• 50

• Never

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

At 80'C, KBr's solubility is:

• 100

• 90

• 80

• 0

Tags

NGSS.HS-PS1-5

How could you change a saturated solution to an unsaturated solution?

• Add solvent

• Add solute

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. 

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

• supersaturated
• diluted
• saturated
• unsaturated

You and your friend have a contest to see who can make iced tea the fastest. Which of the following would NOT help you win?

• Cooling the water
• Using smaller crystals
• Heating the water
• Stirring quickly

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

When you measure how fast a solute dissolves, you are measuring the

• amount of dissolving
• rate of particle movement
• amount of particle movement
• rate of dissolving

Tags

NGSS.HS-PS1-5

The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its

• concentration.

• density.

• dilution.

• solubility.

Which of the following will dissolve at the fastest rate?

• 15 g of sugar cubes in 120 g of water at 60^oC

• 15 g of sugar cubes in 120 g of water at 20^oC

• 15 g of crushed sugar in 120 g of water at 60^oC

• 15 g of crushed sugar in 120 g of water at 20^oC

Tags

NGSS.HS-PS1-5