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| 1. | Which substance would be the solute and which is the solvent in the following: | ||||||||||||||||||
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| 2. | What is the difference between “rate of solution” and “solubility”? | ||||||||||||||||||
| 3. | How does increasing the temperature affect | ||||||||||||||||||
a. |
the solubility of most solids and liquids | ||||||||||||||||||
b. |
the solubility of gases | ||||||||||||||||||
| 4. | How does increasing the pressure affect | ||||||||||||||||||
a. |
the solubility of most solids and liquids | ||||||||||||||||||
b. |
the solubility of gases | ||||||||||||||||||
| 5. | What does the term “hydration” mean with respect to the solution process? | ||||||||||||||||||
| 6. | Do some research on one of the following topics. Answer the questions given below for your topic. Your answers should not be longer than a page. | ||||||||||||||||||
| Write your answers in point form, rather than paragraphs. This is to help you learn to summarize information, rather than copy information directly from your reference material. | |||||||||||||||||||
| As an option your teacher may want you to prepare your research as a class presentation. See the Research Section for some presentation ideas. | |||||||||||||||||||
| Topic A. | Research “the bends”, a serious problem that can arise during scuba diving. The following points/questions should be addressed: | ||||||||||||||||||
| a. | Write a short paragraph (or use point form) that provides a simple description of the bends, including what causes it and how to avoid it. Be sure to name the gas that is involved. Your description should give a clear explanation as it relates to the solubility of gases as pressure changes. | ||||||||||||||||||
| b. | What medical treatment is used for a diver that does get the bends? | ||||||||||||||||||
| c. | What are some other names for The Bends? | ||||||||||||||||||
| d. | Be sure to provide the reference(s) for your information. | ||||||||||||||||||
| Topic B . | Potash mining is an important industry in Saskatchewan . | ||||||||||||||||||
| a. | What is the chemical make-up of potash? | ||||||||||||||||||
| b. | How did the large potash deposits found in Saskatchewan form? | ||||||||||||||||||
| c. | List several locations in Saskatchewan where there are major potash deposits and potash mines. | ||||||||||||||||||
| d. | Explain how potash may be obtained by solution mining. Describe this process. | ||||||||||||||||||
| e | Be sure to provide the reference(s) for your information. | ||||||||||||||||||