Exploring Molarity and Dilutions

What does molarity measure in a solution?

• The concentration of the solute

• The saturation level of the solution

• The weight of the solute

• The volume of the solvent

How is molarity calculated?

• Moles of solute per liter of solution

• Milliliters of solution per gram of solute

• Grams of solute per liter of solution

• Liters of solution per mole of solute

In the IV saline example, what is the first step to find the molarity?

• Calculate the saturation point

• Dilute the solution

• Measure the volume of the solution

• Convert grams to moles

What unit is used for the volume when calculating molarity?

• Gallons

• Milliliters

• Cubic meters

• Liters

What is the molarity of the IV saline solution described in the video?

• 0.015 M

• 15 M

• 1.5 M

• 0.15 M

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

• It increases

• It fluctuates

• It decreases

• It remains the same

What is the relationship between molarity and volume in dilutions?

• Exponentially related

• Not related

• Inversely proportional

• Directly proportional

How much of the original 2 M magnesium sulfate solution is needed to prepare 100 mL of a 0.4 M solution?

• 20 mL

• 40 mL

• 80 mL

• 100 mL

What is the final volume of the diluted magnesium sulfate solution?

• 120 mL

• 200 mL

• 80 mL

• 100 mL

What should be checked to confirm the dilution process was correct?

• Initial molarity is greater than final molarity

• Initial volume is greater than final volume

• Final molarity equals the initial molarity

• Initial molarity is less than final molarity