Which of the following expressions is generally used for solubility? (1 point)

grams of solute per 100 grams of solvent

grams of solvent per 100 milliliters of solute

grams of solute per 100 grams of solution

grams of solute per 100 milliliters of solution

A crystal added to an aqueous solution causes many particles to come out of the solution. Just

before adding the crystal, the solution was __________.

(1 point)

unsaturated

saturated

an emulsion

supersaturated

What happens to the solubility of a gas, in a liquid, if the partial pressure of the gas above the

liquid decreases?

(1 point)

The solubility decreases.

The solubility increases.

The solubility remains the same.

The solubility cannot be determined.

Solubility is defined as the property which refers to the ability of the solute that can be dissolved in a solvent. It is defined as the number of grams of solute per 100 grams of solvent.

For 3:

Unsaturated solution is defined as the solution in which amount of solute that is dissolved in the solvent is less.

Saturated solution is defined as the solution in which no more solute can be dissolved in the given amount of solvent.

Emulsion is defined as the dispersion of one liquid in another liquid in which it is not soluble.

Supersaturated solution is defined as the solution in which solvent contains more amount of solute than the required amount. These solutions help in the process of crystallization.

When a crystal is added to a supersaturated solution, more and more particles come out of the solution and this process is known as crystallization.

For 4:

According to the Henry's Law

The solubility of the gas in a liquid is directly proportional to the partial pressure of the gas.

\(\text{Solubility of a gas in a liquid}\propto \text{Partial pressure of the gas}\)

With increase in the partial pressure, the solubility of the gas in liquid also increases and vice-versa.

Hence, the correct answer is the solubility decreases.