Dilution Challenge

What is the formula for dilution of solutions?

• C1V1 = C2V2

• C1 + V1 = C2 + V2

• C1V1 = C1V2

• C1V2 = C2V1

If you have 100 mL of a 2 M solution, how much water should you add to make it a 1 M solution?

• You should add 50 mL of water to the 2 M solution to make it a 1 M solution.

• You should add 200 mL of water to the 2 M solution to make it a 1 M solution.

• You should add 100 mL of water to the 2 M solution to make it a 1 M solution.

• You should add 300 mL of water to the 2 M solution to make it a 1 M solution.

Tags

NGSS.HS-PS1-5

What is the final volume of a solution if 50 mL of a 6 M solution is diluted to 150 mL?

• 10 mL

• 20 mL

• 50 mL

• 100 mL

What is the concentration of a solution if 25 mL of a 4 M solution is diluted to 100 mL?

• 1 M

• 3 M

• 0.5 M

• 2 M

Tags

NGSS.HS-PS1-5

How do you calculate the dilution factor of a solution?

• Dilution factor = Final volume - Initial volume

• Dilution factor = Final volume / Initial volume

• Dilution factor = Final volume * Initial volume

• Dilution factor = Final volume + Initial volume

If you dilute 20 mL of a 10 M solution to 100 mL, what is the final concentration?

• 15 M

• 5 M

• 2 M

• 8 M

Tags

NGSS.HS-PS1-5

What is the dilution factor if you dilute 10 mL of a solution to 100 mL?

• 50

• 100

• 200

• 10

Tags

NGSS.HS-PS1-5

What is the final concentration if 30 mL of a 5 M solution is diluted to 150 mL?

• 3 M

• 1 M

• 10 M

• 7.5 M

How do you calculate the volume of stock solution needed to make a certain volume of diluted solution?

• C1V1 = C2V2

• C1/C2 = V2/V1

• C1V2 = C2V1

• V1/C1 = V2/C2

If you dilute 50 mL of a 8 M solution to 200 mL, what is the final concentration?

• 6 M

• 2 M

• 10 M

• 4 M