Molarity and Dilutions

A solution is made by dissolving 0.50 mole of NaCl in enough water to give a final volume of 0.40 L. What is the molarity of the solution?

• 0.10 M

• 0.40 M

• 1.25 M

• 2.33 M

50 ml of a 1 M solution is diluted until the final volume is 80ml. How much water was added?

• 50 ml

• 1.3 ml

• 30 ml

• 130 ml

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO₃ to a volume of 250.0 mL?

• 15.9 M

• 0.636 M

• 0.642 M

• 1.59 M

Which one of the following diagrams has the highest boiling point?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution.

• 0.750 M

• 99 M

• 1.3 M

• 2.0 M

How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?

• 7.5 mL

• 15 mL

• 1333 mL

• 200 mL

How many mL of 1.0M KBr solution would you need to prepare 250 mL of a 0.2M dilution?

• 175 mL

• 250 mL

• 50 mL

• 5 mL

What would the molarity of a solution be if you took 10 mL of a 13M stock solution and made a 300 mL solution?

• 390M

• 230M

• 0.43M

• 0.26M

Which of the following is the Dilution Formula?

• V₁M₁ = V₂M₂

• M = m/V

• V = mT

• PV = nRT

If I have 340.0 mL of a 0.500 M NaBr solution, what will the concentration be if I add 560.0 mL more water to it? (Remember to use the total new volume)

• .188 M

• 3.78 M

• .389 M

• 1.76 M

Tags

NGSS.HS-PS1-7