Chem Homework

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Water is Unique. You know this, but now you can connect some of the amazing properties of water to your everyday life. In the Organic unit, we will briefly review some of the ‘functional’ groups of organic molecules. Organic molecules can be very simple carbon structures like the ones we will overview. However, they can be very complicated molecules – i.e. DNA.

One ’intermediate’ complex organic molecule is soap. Watch the NSF video “Chemistry of Soap and Water” on the Content page of D2L for this class.

1. Identify all IMF between the

· Water and water

· The ion Na+ and water,

· the ‘polar head’ of soap and water, and

· the nonpolar portion of the soap and the water.

2. Explain how the formation of a soap ‘micelle’ helps remove dirt and oil in an aqueous environment.

3. The structure below is cholesterol. It is an ‘advanced’ form of structure drawing where every turn (or corner) represents a C with enough H to make an octet around the C. Notice that there is one ‘alcohol group’ (OH) on the structure. The formula is C27H46O. Given what you know about mostly non-polar molecules, describe why cholesterol can ‘stick’ to your arteries.

4. Evaluate this learning visualization for me.

a. Is it interesting?

b. Does it help you put anything together – if so what?

c. How long did you spend on the activity?

d. Would you recommend it as a helpful activity?