2nd Semester Final Review

What is a "homogeneous mixture of two or more substances in a single phase"?

• Solution
• Solvent
• Solute
• Compound

What does it mean to be "Soluble" ?

• Capable of being a solid.
• To have soul.
• Capable of being dissolved.
• To sink.

A saturated solution is one that....

• contains the maximum amount of dissolved solute.
• contains less solute than a saturated solution.
• contains more solute than a saturated solution.
• is the amount of a substance required to form a saturated solution.

A supersaturated solution is one that....

• contains the maximum amount of dissolved solute.
• contains less solute than a saturated solution.
• contains more solute than a saturated solution.
• is the amount of a substance required to form a saturated solution.

An unsaturated solution is one that....

• contains the maximum amount of dissolved solute.
• contains less solute than a saturated solution.
• contains more solute than a saturated solution.
• is the amount of a substance required to form a saturated solution.

The substance dissolved in a solution is called ... 

• colloid
• solution
• solute
• solvent

The dissolving medium in a solution is called ... 

• colloid
• solution
• solute
• solvent

90 grams of sodium nitrate (NaNO3) are put into 100 grams of water and stirred. The final
mixture has a temperature of 20°C. About how many grams of the sodium nitrate dissolved?

• 23
• 73
• 80
• 88

Students are asked to make statements about the solubility graph above. Which student does
the best job of communicating the general features of the graph?

• Most salts require 100 grams of water in order to dissolve completely.
• Table salt has the average solubility of all salts.
• The solubility of most salts increases with increasing temperature.
• Most curves show a decreasing slope as the temperature rises.

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

• 83 grams
• 75 grams
• 40 grams
• 12 grams