Solutions

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 95 ºC?

• 83 grams

• 75 grams

• 40 grams

• 12 grams

Which substance is MOST soluble at 0 ºC?

• KI

• NaNO₃

• NaCl

• Ce₂(SO₄)₃

Which solute is the least soluble at 90 ⁰C?

• SO₂
• KClO₃
• KI
• HCl

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

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

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

• NH₃
• NaNO₃
• KNO₃
• NaCl

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

This graph represents a(n) ___ solution

• saturated
• supersaturated
• unsaturated
• undefined

This solution would be considered

• Unsaturated
• Supersaturated
• Saturated
• Undefined

Kool-Aid - Powder, sugar, and water
Identify the solvent 

• water
• powder
• sugar
• powder and sugar