Solubility and Molarity

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

• 60

• 55

• 50

• Never

Tags

NGSS.HS-PS1-5

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

• Unsaturated

• Saturated

• Supersaturated

Tags

NGSS.HS-PS1-5

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

Identify how many grams of KNO3 is required to make a saturated solution at 40'C.

• 50 g

• 45 g

• 55 g

• 33 g

Tags

NGSS.MS-PS1-2

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. 

Solution where more solute can still be dissolved at the given temperature. 

• Saturated
• Unsaturated
• Mixture
• Homogeneous solution

Describe a solute.

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

What does it mean to dilute a solution?

• lower the concentration of solute per solvent
• increase the concentration of solute per solvent

Tags

NGSS.HS-PS1-5

If I dissolve sugar in water, what is the solute?

• Water
• Hydrogen
• Sugar
• Carbon

What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?

• 0.018 M
• 0.0011 M
• 1.052 M
• 0.062 M