Reading a Solubility Curve

Which substance is MOST soluble at 0 ºC?

• KI

• NaNO₃

• NaCl

• Ce₂(SO₄)₃

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which solute is the most soluble at 10 ⁰C?

• KI

• KClO₃

• NH₄Cl

• NH₃

Tags

NGSS.MS-PS1-2

Which solute is the least soluble at 90 ⁰C?

• SO₂

• KClO₃

• KI

• HCl

Tags

NGSS.MS-PS1-2

When 42 grams of potassium chloride ( KCl), is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

Tags

NGSS.MS-PS1-2

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.MS-PS1-4

NGSS.MS-PS3-4

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.MS-PS1-2

How many grams of CaCl₂, are soluble in 100 g of water at approximately 17 ºC?

• 58 grams

• 70 grams

• 0 grams

• 12 grams

Tags

NGSS.MS-PS1-4

Which of these solutes does not increase in solubility as temperature rises?

• NH₃

• NaNO₃

• KNO₃

• NaCl

Tags

NGSS.MS-PS1-4

The substance which dissolved in the solvent

• Dissolve

• Solubility

• Solvent

• Solute

What conclusion can be made using this solubility curve?

• Decreasing temperatures always increases solubility 

• Increasing temperatures always increases solubility

• Increasing temperatures usually increases solubility

• Temperature has no affect on solubility