Calculating Molarity and Molality Concentration

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

What is molarity?

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1. How many grams of CH3 OH is needed to make a 0.244 M solution in 400 mL of water?

2. A lab technician dissolved 2 mol of X in 1 liter of water in order to make a 2 M solution. What did they do wrong?

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About This Quiz & Worksheet

This quiz and corresponding worksheet will help you gauge your understanding of how to calculate molarity and molality concentration. Topics you'll need to know to pass the quiz include understanding the moles of a solute per liter of a solution as well as knowing when molality is usually used.

Quiz & Worksheet Goals

Use these assessment tools to assess your knowledge of:

  • The moles of a solute per liter of a solution
  • When molality is usually used
  • The essential characteristics of molarity
  • The defining characteristics of a concentration
  • The essential characteristics of molality

Skills Practiced

This worksheet and quiz will let you practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related how to calculate molarity and molality concentration lesson
  • Interpreting information - verify that you can read information regarding how to calculate molarity and molality concentration and interpret it correctly
  • Knowledge application - use your knowledge to answer questions about how to calculate molarity and molality concentration

Additional Learning

To learn more about finding molality and molarity, review the corresponding lesson on Calculating Molarity and Molality Concentration. This lesson covers the following objectives:

  • Describe the idea behind solvent
  • Identify the moles of a solute per liter of a solution
  • Know when molality is usually used
  • Learn the essential characteristics of molarity
  • Appreciate the defining characteristics of a concentration
  • Understand the essential characteristics of molality
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