Solubility Curves

Front

Which of the following is NOT a characteristic of a solution?

• It is made up of two or more substances.
• The solute particles are evenly distributed in the solvent.
• The solute and solvent particles physically mix.
• The solute and solvent particles chemically mix.

Back

The solute and solvent particles chemically mix.

Front

Which of the following is NOT true about solute and solvent of a solution?

• The solute is the substance that breaks up.
• The solvent is the substance that does the dissolving.
• The solvent particles are always more than the solute particles.
• The solute particles chemically react with solvent particles.

Back

The solute particles chemically react with solvent particles.

Front

An unsaturated solution is one that...

Back

contains less solute than a saturated solution.

Front

How many grams of K₂Cr₂O₇ are soluble in 100 g of water at 45 ºC?

Back

27 grams

Front

When 60 grams of calcium chloride, CaCl₂, is dissolved in 100 grams of water at 10 ºC, the solution can be correctly described as:

Back

unsaturated

Front

Which action will NOT increase the rate of dissolution (dissolving)?

• stirring/agitation
• decreasing the surface area of the solute
• decreasing the temperature
• increasing the temperature

Back

decreasing the temperature

Front

You add a bit of solute to the solution at room temperature and it dissolves. The solution was: unsaturated, saturated, supersaturated.

Back

unsaturated

Front

When 50 grams of NaCl is dissolved in 100 grams of water at 40 ºC, the solution can be correctly described as:

Back

supersaturated

Front

At approximately what temperature does the solubility of lead nitrate, Pb(NO₃)₂, match the solubility of potassium nitrate, KNO₃?

Back

Front

Back

approximately 13 grams