Solubility Curve Questions

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium chlorate, KClO₃?

• 60 ºC

• 100 ºC

• 50 ºC

• 83 ºC

Tags

NGSS.HS-PS3-4

How many grams of KNO₃, are soluble in 100 g of water at 40 ºC?

• 83 grams

• 75 grams

• 60 grams

• 12 grams

Tags

NGSS.HS-PS3-4

Which substance is LEAST soluble at 0 ºC?

• KClO₃

• NaNO₃

• NaCl

• K₂Cr₂O₇

Which solute is the most soluble at 10 ⁰C?

• KI
• KClO₃
• NH₄Cl
• NH₃

Which solute is the least soluble at 90 ⁰C?

• SO₂
• KClO₃
• KI
• HCl

Tags

NGSS.HS-PS1-5

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. 

Which solute does not increase in solubility as temperature rises?

• NH₃
• NaNO₃
• KNO₃
• NaCl

Tags

NGSS.HS-PS3-4

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

Tags

NGSS.HS-PS3-4

When 20 grams of KNO₃ is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

Tags

NGSS.MS-PS1-4

When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated

• unsaturated

• saturated

Tags

NGSS.HS-PS1-5