Practice Solutions (2) - Chapter 2: Solutions

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6 sample questions

Question 1.
Define a solution.
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Remember the nature of solutions.
Question 2.
What is an unsaturated solution?
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Think about what happens when you keep adding solute.
3Question 3.
What is the term for a solution that cannot dissolve more solute?
- Unsaturated
- Saturated
- Supersaturated
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Think about what happens when no more solute can dissolve.
4Question 4.
True or False: The boiling point of a solution is always higher than that of its solvent.
- True
- False
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Consider how impurities affect boiling point.
Question 5.
A solution is made by dissolving 10g of NaCl in 200g of water. What is the mass percentage of NaCl? Also, what type of solution is this likely to be?
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Total mass = mass of solute + mass of solvent.
Question 6.
Given a solution containing 0.5 moles of KCl in 2 liters of water, calculate the molarity of the solution. What would be the approximate boiling point elevation?
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Use the formula for boiling point elevation after finding molarity.

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