Chemistry - Solubility Curves

How much KNO₃ solute is saturated at 40 degrees?

• 75

• 55

• 65

• 85

How much NaBr solute is saturated at 70 degrees?

• 110

• 120

• 130

• 140

At what temperature can you fully dissolve 140g of NaNO₃?

• 62

• 73

• 81

• You cannot determine this

At what temperature can you fully dissolve 60g of KNO₃?

• 27

• 30

• 37

• You cannot determine this

What type of a solution is 55g KCl at 70ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

How does a solution become supersaturated?

• dissolve lots of solvent 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. 

Tags

NGSS.HS-PS1-5

What is the molarity of 3 mole of hydrochloric acid in 3 L of water. 

• 3
• 1
• 6
• 9

The ___ is the thing being dissolved

• solute
• solvent

If you have 0.045 L of 0.465 M potassium bromide. How many moles of potassium bromide are present?

• 20.9 mol
• 0.021 mol
• 0.02 mol
• 0.0209 mol

How many L are required to make 3.5 M hydrochloric acid using 1.1 moles? 

• 3.18 L
• 0.31 L
• 3.85 L
• 4.6 L