Exploring Solution Properties _I

Front

What is the solubility of a gas in water at 2 atm if it is 0.5 g/L at 1 atm?

Back

1.0 g/L

Front

Calculate the mole fraction of solute in a solution with 2 moles of solute and 8 moles of solvent.

Back

0.2

Front

Define a saturated solution.

Back

A solution that contains the maximum amount of solute that can be dissolved at a given temperature.

Front

Why does increasing temperature generally increase the solubility of solids in liquids?

Back

It increases the kinetic energy of the molecules, allowing more solute to dissolve.

Front

What is the mass percent of NaCl in a solution prepared by dissolving 10 g of NaCl in 90 g of water?

Back

11.1%.

Front

What is the definition of solubility?

Back

The maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature.

Front

Explain the relationship between pressure and the solubility of gases in liquids.

Back

Increasing pressure increases the solubility of gases in liquids.

Front

What is the formula for calculating mole fraction?

Back

Mole fraction = moles of solute / (moles of solute + moles of solvent).

Front

What happens to the solubility of most solids in water as temperature increases?

Back

It generally increases.

Front

What is the difference between a saturated and an unsaturated solution?

Back

A saturated solution contains the maximum amount of solute, while an unsaturated solution can still dissolve more solute.