Unit 8 Solutions Quiz

Which of the following is not one of the three factors  that affect solubility?

• structure
• temperature
• concentration
• pressure

Which of the following substances is a heterogeneous substance?

• baby oil
• rocky road ice cream
• salt water
• milk

A solution is made by mixing 6.44 g of CaCl₂ in 150 mL of distilled water.  Identify the solute in this solution.

• CaCl₂
• water
• CaCl₂ + water
• none of the above

Which of the following substances is a homogeneous solution?

• chocolate chip cookie
• italian dressing
• apple juice
• orange juice

If I make a solution by adding water to 27.72 g of methanol (CH₃OH) until the final volume of the solution is 275 mL, what is the molarity of methanol in this solution?

• 5.66 M CH₃OH
• 3.13 M CH₃OH
• 0.77 M CH₃OH
• 2.19 M CH₃OH

When no more sugar will dissolve in a glass of water, the solution is

• unsaturated
• saturated
• supersaturated
• suspended

The substance being dissolved is the solvent, and the substance doing the dissolving is the solute.

• True
• False

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K₂Cr₂O₇?

• 60 ºC
• 30 ºC
• 50 ºC
• 83 ºC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which solute is the least soluble at 90 ⁰C?

• SO₂
• KClO₃
• KI
• HCl

Tags

NGSS.MS-PS1-4

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