Molality Practice Worksheet
A Grade 10 Chemistry worksheet focusing on calculating and understanding molality, including definitions, calculations, and problem-solving.
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Standards
Molality Practice Worksheet
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Date:
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Read each question carefully and provide your answers in the space provided. Show all your work for calculation problems.
1. Molality is defined as the number of moles of per kilogram of .
2. Unlike molarity, molality does not change with .
3. Which of the following units is used to express molality?
mol/L
g/mol
mol/kg
kg/mol
4. Calculate the molality of a solution prepared by dissolving 25.0 g of NaCl (Molar Mass = 58.44 g/mol) in 500.0 g of water. Show your work.
5. A solution contains 0.75 moles of glucose (C6H12O6) dissolved in 2.5 kg of ethanol. What is the molality of this solution? Show your work.
6. Molality is dependent on the volume of the solution.
True
False