1.10.2 - Reactions in Solutions
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Practice Questions
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Define mass per cent.
💡 Hint: Think about the total mass.
What is molarity?
💡 Hint: It relates to volume.
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Interactive Quizzes
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What does molarity measure?
💡 Hint: Consider the relationship between moles and volume.
True or False: Molality changes with temperature.
💡 Hint: Think about how mass behaves with temperature.
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Challenge Problems
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A solution contains 20 g of NaCl dissolved in 500 g of water. Calculate the molality of the solution.
💡 Hint: Convert grams of water to kilograms first.
Calculate the final concentration in M of a solution if a 2 M NaOH solution is diluted to 4 liters by adding water. How many liters of the initial solution were used?
💡 Hint: Use the dilution equation to find the original volume.
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