Exploring Molarity and Intermolecular Forces

What is molarity defined as?

• The number of moles of solute per liter of solution

• The number of solute particles per liter of solution

• The weight of solute per liter of solution

• The volume of solute per liter of solution

What are the components of the solution used in the example?

• Sodium chloride and water

• Sodium bicarbonate and water

• Sodium sulfate and ethanol

• Sodium sulfate and water

What is the total volume of the solution in the example?

• 250 mL

• 0.250 L

• 250 L

• 0.250 mL

What is the molar mass of sodium sulfate?

• 84.07 g/mol

• 58.44 g/mol

• 142.04 g/mol

• 180.15 g/mol

What is the first step in calculating molarity?

• Determining the volume of the solution

• Calculating the number of moles of solute

• Measuring the mass of the solute

• Converting the solution volume to liters

How do you convert milliliters to liters?

• Multiply by 100

• Divide by 1000

• Multiply by 1000

• Divide by 100

Why do we convert the volume of the solution from milliliters to liters in molarity calculations?

• Because molarity is defined in terms of liters

• To simplify the calculation

• Because the formula requires it

• All of the above

What is the final molarity of the sodium sulfate solution?

• 0.25 M

• 1.00 M

• 0.50 M

• 2.50 M

What does the capital M stand for in molarity?

• Moles

• Molar

• Milliliters

• Mass

How many significant figures are used in the final molarity calculation?

• Five

• Four

• Three

• Two