Concentration and Dilution

What is the definition of concentration?

• The process of thinking deeply about something

• Measure of the amount of a substance in a given volume of a solution.

• The state of being mentally absorbed in something

• The act of focusing one's attention on a particular task

Tags

NGSS.HS-PS1-5

What is the definition of dilution?

• The process of converting a solute into a solvent by adding more solution.

• The process of reducing the concentration of a solute in a solution by adding more solvent.

• The process of increasing the concentration of a solute in a solution by adding more solvent.

• The process of separating a solute from a solution by adding more solvent.

Name one factor that affects concentration.

• Noise

• Distractions

• Lack of motivation

• Fatigue

Name one factor that affects dilution.

• Concentration

• Pressure

• Temperature

• Volume

How does dilution affect the properties of a substance?

• Dilution changes the chemical composition of a substance.

• Dilution has no effect on the properties of a substance.

• Dilution increases the concentration and intensity of a substance's properties.

• Dilution reduces the concentration and intensity of a substance's properties.

What happens to the concentration of a solution when it is diluted?

• The concentration of the solution fluctuates.

• The concentration of the solution remains the same.

• The concentration of the solution increases.

• The concentration of the solution decreases.

What happens to the concentration of a solution when more solute is added?

• The concentration of the solution becomes diluted.

• The concentration of the solution increases.

• The concentration of the solution remains the same.

• The concentration of the solution decreases.

Tags

NGSS.HS-PS1-5

What happens to the concentration of a solution when more solvent is added?

• The concentration of the solution increases.

• The concentration of the solution remains the same.

• The concentration of the solution becomes more concentrated.

• The concentration of the solution decreases.

Name one factor that affects the rate of dissolution.

• Temperature

• Pressure

• Particle size

• Stirring rate

Tags

NGSS.MS-PS1-4

How does temperature affect the rate of dissolution?

• Temperature has no effect on the rate of dissolution.

• Temperature decreases the rate of dissolution.

• Temperature only affects the rate of dissolution in certain substances.

• Temperature increases the rate of dissolution.

Tags

NGSS.HS-PS1-5