CHEM hw

Module 1: Solutions and Colligative Properties - Discussion

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Answer three questions below.  Add comments and/or questions to your classmates' posts, especially if you don't understand their responses.  

Provide thoughtful answers to at least two of these three questions.  Your answers should be complete, providing explanations where requested.  All responses should be written in YOUR OWN WORDS! Include reference information, if appropriate.

1)  If you lived in Alaska, which of the following natural gases could you keep in an outdoor storage tank in winter and why?  methane (CH4), propane (C3H8), or butane (C4H10)

2) How does increasing the concentration of a nonvolatile solute in water affect the following properties and why: 

a) vapor pressure

b) freezing point

c) boiling point

d) osmotic pressure

3)  There are many different units of concentration used throughout science.  List three units of concentration and provide a real-world example of the use of that unit of concentration.