AP Chemistry Solutions Test

In a chromatography experiment using water as the solvent, the solute that would have the highest R_f value (moves the farthest) would be:

• polar

• nonpolar

Chromatography separates solutions on the basis of _____ while distillation separates solutions on the basis of ______.

• IMFs; solubility

• solubility; conductivity

• solubility; boiling point

• boiling point; solubility

When no more sugar will dissolve in a glass of water at room temperature, the solution is...

• unsaturated

• saturated

• supersaturated

Tags

NGSS.MS-PS1-2

According to the table which solute is nonpolar.

• ammonium chloride
• naphthalene
• ethanol
• urea

Which salt is LEAST soluble at 0 ºC?

• K₂Cr₂O₇
• KNO₃
•  KClO₃
• Ce₂(SO₄)₃

What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide.

• 0.8 M

• 1.5M

• 3.0M

• 6.0M

Tags

NGSS.HS-PS1-7

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

Which of the following will be the least soluble in water?

• CH₃CH₂CH₂OH

• CH₃OH

• CH₃CH₂OH

• None of them are soluble in water.

• They are all equally soluble in water.

How can you increase the solubility of a gas in a liquid?

• Decrease the IMFs between the gas the and the liquid.

• Increase the boiling point of the solution.

• Increase the pressure of the solution.

• All of these would work.

In general, how could you increase the solubility of a solid in a liquid?

• Increase the pressure.

• Decrease the pressure.

• Increase the temperature.

• Decrease the temperature.

Tags

NGSS.HS-PS3-4