Key Ideas Presentation: Solutions

TEKS 7.6 D, E

Solutions

KEY IDEAS

• What are aqueous solutions?
• What are concentration and dilution?
• What factors affect rate of dissolution?

Words to Know

aqueous solution
solvent
solute
concentration
dilution
rate of dissolution

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

What are aqueous solutions?

Photo credits: McDow Photo Inc/Shutterstock; Pawel Radomski/Shutterstock; Bjoern Wylezich/Shutterstock

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

What are aqueous solutions?

An aqueous solution is a mixture in which molecules of another substance are mixed uniformly with water.

Water is the solvent because it dissolves other substances. The substance dissolved by the water is called the solute.

Photo credits: McDow Photo Inc/Shutterstock; Pawel Radomski/Shutterstock; Bjoern Wylezich/Shutterstock

Open Ended

What are aqueous solutions?

Aqueous solutions are...

Dropdown

Identify: What are the solvent and the solute in each of these aqueous solutions?



Sea Water:

Solvent -

Select answer

Solute ​-

Select answer

Dropdown

Identify: What are the solvent and the solute in each of these aqueous solutions?



Maple syrup:

Solvent -

Select answer

Solute -​

Select answer

Dropdown

Identify: What are the solvent and the solute in each of these aqueous solutions?



Seltzer:

Solvent -

Select answer

Solute ​-

Select answer

Dropdown

Identify: What are the solvent and the solute in each of these aqueous solutions?



Flavored Drink:

Solvent -

Select answer

Solute ​-

Select answer

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

What are concentration and dilution?

The concentration of a solution describes how much solute is dissolved in a given amount of the solvent.

Decreasing the concentration is dilution.

Photo credit: Bokyoung Yoon/Shutterstock

Open Ended

What are concentration and dilution?

Concentration and dilution is...

Multiple Choice

You have various amounts of drink mix. You want to make a drink with the greatest concentration. Which number of spoons added to the glass will give the greatest concentration?

Multiple Choice

You have various amounts of drink mix. You want to make a drink with the least concentration. Which number of spoons added to the glass will give the greatest concentration?

Multiple Choice

You have various amounts of water. You want to make the drink with the greatest concentration. Which glass of water would create the greatest concentration?

Multiple Choice

You have various amounts of water. You want to make the drink with the greatest concentration. Which glass of water would create the least concentration?

Copyright © Savvas Learning Company LLC. All Rights Reserved. Savvas is not responsible for any modifications made by end users to the content posted in its original format.

What factors affect rates of dissolution?

Heating the solvent, breaking up the solute, or agitating the solution are ways to increase the number of collisions of solvent and solute molecules. The rate of dissolution increases.

Photo credit: Ratchanee Sawasdijira/Shutterstock

Open Ended

What factors affect rates of dissolution?

The rate of dissolution is affected by...

Dropdown

Fill in the blanks to complete each sentence.

Leslie is dissolving bouillon cubes in water. Crushing the cubes, warming the water, and stirring the water will

Select answer

the rate of dissolution. Cooling the water will

Select answer

the rate of dissolution.