Solubility Curves Worksheet
Explore the principles of solubility curves, including factors affecting solubility, interpreting graphs, and calculating saturation points for various chemical compounds.
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Solubility Curves Worksheet
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Read each question carefully and answer to the best of your ability. Refer to the provided solubility curve graph for questions that require its interpretation.
Refer to the solubility curve graph below for questions 1-4:
1. According to the graph, what is the approximate solubility of NaHCO3 at 40°C?
10 g/100 mL H2O
12 g/100 mL H2O
14 g/100 mL H2O
16 g/100 mL H2O
2. If 15 grams of NaHCO3 are dissolved in 100 mL of water at 20°C, what kind of solution is formed?
Saturated
Unsaturated
Supersaturated
Dilute
3. The solubility curve shows that as the temperature of the solvent increases, the solubility of NaHCO3 .
4. To dissolve an additional 5 grams of NaHCO3 in a solution that is saturated at 10°C, the temperature must be increased to approximately °C.
5. Explain why the solubility of most solids increases with increasing temperature, but the solubility of gases typically decreases with increasing temperature.
6. Describe how you would prepare a supersaturated solution of NaHCO3, given a saturated solution at 60°C.
7. A point below the solubility curve represents an unsaturated solution.
True
False