size of a oil molecule lab

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Jason

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Sep 30, 2012, 8:24:04 PM9/30/12

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Scientifically oriented question – What is the estimated size of an oil molecule?

Evidence –Volume of the oil drop: 4/3π(.25)^3=.065 mm^3.

Area is A= π(110)^2 =38000 mm^2 when rounded to least number of significant figures

Radius is 110 mm because the Diameter is 220 mm

Explanation- We were able to find that the radius of a circle was simply half of the diameter.

By calculating the volume of the drop, 0.065 mm^3, and the area of the spread out drop,38000 mm^2, we could easily determine the thickness of the oil, 1.7 x 10^-9 m, by dividing the volume and area. Since the thickness of the oil is the size of the molecule, the size of the oil molecule is 1.7 x 10^-9 m.

Connection-Nanotechnology is used in a lot of everyday uses such as lotion, makeup, sun tan lotion, clothes, and other daily items. Nanotechnology measures chemicals and particles need to be so exact in order for an object or substance to be useable and affective.

Examples of Nanotechnology uses though out many jobs:

Construction - Nanotechnology has the potential to make construction faster, cheaper, safer, and more varied.

Vehicle manufacturers - lighter and stronger materials will be useful for creating vehicles that are both faster and safer. Combustion engines will also benefit from parts that are more hard-wearing and more heat-resistant.

Cosmetics - One field of application is in sunscreens. The traditional chemical UV protection approach suffers from its poor long-term stability. A sunscreen based on mineral nano particles such as titanium oxide offer several advantages. Titanium oxide nano particles have a comparable UV protection property as the bulk material, but lose the cosmetically undesirable whitening as the particle size is decreased.

Communication – Information would be to make people realize how important this activity was. It may seem like it is a simple science lab. In order for this to happen, I would survey and see what are the main objects, food, clothing, etc. that American's use in our everyday lives. Then I would show examples how most of our everyday item uses are made and show it to the public by videos or simple examples.

Reflection – Each and every group had different outcomes on how big their oil drop was, it was because the groups either they added a different amount of baby powder on the water surface.