2.7.3 - Depression in Freezing Point
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Practice Questions
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What is depression in freezing point?
💡 Hint: Think about how adding something to another substance changes its freezing behavior.
What does the formula \(\Delta T_f = K_f \cdot m\) represent?
💡 Hint: Look at each component to understand how they interact.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the effect of adding a solute to a freezing solvent?
💡 Hint: Think about real-world applications, like road salt in winter.
True or False: Depression in freezing point is a colligative property.
💡 Hint: Remember what defines a colligative property.
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Challenge Problems
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A solution made of 2 moles of NaCl in 3 kg of water. How much does the freezing point decrease? Use \(K_f = 1.86 °C kg/mol\).
💡 Hint: Account for the dissociation of NaCl into two ions.
If a substance shows a freezing point depression of 5 °C in 1 kg of water while 2 moles are dissolved, find its cryoscopic constant.
💡 Hint: Use the formula appropriately and isolate K_f.
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