Solutions Chemistry

Which of the following would be classified as an electrolyte in aqueous solution?

• Na₂CO₃

• H₂SO₄

• HF

• all of these

Which term describes a solution in which there is less than the maximum amount of solute dissolved for the given temperature?

• Unsaturated

• Saturated

• Concentrated

• Supersaturated

Which type of solid would be the most soluble in cyclohexane (C₆H₁₂)?

• electrolytic

• ionic

• nonpolar covalent

• polar covalent

An electrolyte is...

• The rapid, random movement of particles due to magic.

• A substance that dissolves in water and conducts electric current.

• A substance that dissolves in water and does not conduct electric current.

• The solution process when water is the solvent.

The ___ is the thing being dissolved.

• solute
• solvent
• mixture
• suspension

A dissolved solute that does not form ions is:

• a nonelectrolyte
• a weak electrolyte
• a strong electrolyte
• insoluble

What type of a solution is 60g NaNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

Besides stirring, which of the following should be done to make this powder dissolve faster in the liquid?

• Add heat to the liquid

• Cool the liquid in a freezer

• Add more powder to the liquid

• Store the mixture in a dark place

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

Since "like dissolves like", water and oil will not mix because

• both of them are polar

• both of them are nonpolar

• oil is polar and water is nonpolar

• oil is nonpolar and water is polar

Molarity is ...

• grams of solute/deciliters of solvent.

• grams of solute/liters of solution.

• moles of solute/liters of solution.

• moles of solute/milliliters of solvent.

Tags

NGSS.HS-PS1-5