lesson 2 unit 3

Concentration is

• the amount of solute in the solvent

• the amount of solvent in the solute

• density

• particle size

Tags

NGSS.HS-PS1-5

Which solution is more concentrated?

Solution 1:

500 mL of water

100 g of salt

Solution 2:

500 mL of water

90 g of salt

• Solution 1

• Solution 2

• They have the same concentration

• I have no idea

Which solution is more concentrated?

Solution 1:

20 mL of water

5 g of salt

Solution 2:

20 mL of water

10 g of salt

• Not enough information to tell

• Solution 1

• Solution 2

• They are equally concentrated

In order to dilute a solution, you need to

• add more of the solid

• add more water

• find the mass

• find the volume

Which solution is more diluted?

Solution 1:

1000 mL of water

60g of salt

Solution 2:

500 mL of water

60 g of salt

• Not enough information to tell

• Solution 1

• Solution 2

• They are equally diluted

Both of these solutions have a volume of 30 mL. Which solution is more concentrated?

• orange solution

• green solution

• they are equally concentrated

Tags

NGSS.MS-PS1-2

Both solutions have equal volumes of 30 mL. Which solution is more diluted?

• Solution X

• Solution Y

Tags

NGSS.MS-PS1-2

__________ are made up of solutes and solvents.

• Solutions
• Suspension
• Colloid
• mixtures

When a solution is saturated:

• No additional material will dissolve in it
• You need to stir it more 
• Two materials have combined to create a clear liquid
• Crystals form 

This is the part of a solution that dissolves

• Solute
• Solvent
• Solution
• Mixture