Chemistry: Concentrations Worksheet
Grade 11 Chemistry worksheet covering key concepts in solution concentrations, including molarity, dilution, and practical applications.
Includes
Standards
Topics
Chemistry: Concentrations
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following units is used to express the concentration of a solution as moles of solute per liter of solution?
Molality
Molarity
Parts per million
Percent by mass
2. What happens to the concentration of a solution when more solvent is added?
It increases
It decreases
It remains the same
It depends on the solute
3. A solution with a high concentration of solute is called a solution.
4. The process of adding more solvent to decrease the concentration of a solution is known as .
5. Calculate the molarity of a solution prepared by dissolving 25.0 g of NaCl (Molar Mass = 58.44 g/mol) in enough water to make 500.0 mL of solution. Show your work.
6. Describe how you would prepare 100.0 mL of a 0.50 M HCl solution from a 6.0 M stock solution of HCl. Include any necessary calculations.
7. Adding more solute to a saturated solution will always increase its concentration.
True
False
8. The molarity of a solution is temperature-dependent.
True
False
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