Henry's Law

What do you call a Solution where more solute can still be dissolved at the given temperature.

• Saturated

• Unsaturated

• Mixture

• Homogeneous solution

Answer explanation

An unsaturated solution is one where more solute can still be dissolved at a given temperature. In contrast, a saturated solution has reached its maximum solute capacity.

When a solvent contains as much of the solute as it can hold, the solution is said to be

• supersaturated

• diluted

• saturated

• unsaturated

Answer explanation

A solution is termed 'saturated' when it contains the maximum amount of solute that can be dissolved at a given temperature. Therefore, the correct answer is 'saturated', as it indicates the solute capacity of the solvent is reached.

What does it mean to dilute a solution?

• lower the concentration of solute per solvent

• increase the concentration of solute per solvent

Answer explanation

To dilute a solution means to lower the concentration of solute per solvent. This is achieved by adding more solvent, which decreases the amount of solute in relation to the total volume of the solution.

You can make a solution more concentrated by adding __________.

• solute

• solvent

• water

Answer explanation

You can make a solution more concentrated by adding a solute. A solute is the substance that is dissolved in a solvent, increasing the overall concentration of the solution.

How does this factor affect the solubility of a GAS?

Increasing pressure

• More soluble

• Less soluble

• No effect

Answer explanation

Increasing pressure increases the solubility of a gas due to the gas molecules being forced into the solvent, allowing more gas to dissolve. Therefore, the correct answer is 'More soluble'.

How does this factor affect the solubility of a GAS?

Increasing temperature

• More soluble

• Less soluble

• No effect

Answer explanation

Increasing temperature decreases the solubility of gases in liquids. This is because higher temperatures provide more energy for gas molecules to escape from the liquid, making them less soluble.

What is the formula for Henry's law?

• S₁ + S₂ / P₁ + P₂

• S₁ / P₁ = S₂ / P₂

• T₁ / V₁ = T₂ / V₂

• P₁V1 = P₂V₂

Answer explanation

Henry's law states that the concentration of a gas in a liquid is proportional to the pressure of that gas above the liquid. The correct formula is S1 / P1 = S2 / P2, indicating this relationship.

A solution starts deviating from Henry’s law when it is at high ______

• Temperature

• Pressure

• Volume

• All of the above

Answer explanation

A solution deviates from Henry's law primarily at high pressure, as increased pressure affects gas solubility. While temperature and volume can influence solubility, pressure is the key factor for deviation from Henry's law.

What is the formula for Henry's law?

• S₁ + S₂ / P₁ + P₂

• S₁ / P₁ = S₂ / P₂

• T₁ / V₁ = T₂ / V₂

• P₁V1 = P₂V₂

Answer explanation

Henry's law states that the concentration of a gas in a liquid is proportional to the pressure of that gas above the liquid. This is represented by the formula S1/P1 = S2/P2, where S is solubility and P is pressure.

As per Henry law, Solubility of a gas in a liquid is directly proportional to __________ of the gas.

• temperature

• pressure

• volume

• pressure x volume

Answer explanation

As per Henry's law, the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid. Therefore, the correct answer is pressure.