A crude oil spill from a deep-water drilling platform is always possible. The de

Question

A crude oil spill from a deep-water drilling platform is always possible. The density of crude oil ranges from 0.8 g/cm3 to 0.9 g/cm3. How might the density of crude oil affect its impact on wildlife, both aquatic and terrestrial? How might its density affect clean-up operations? How might the density of crude oil affect potential fires?

In Activity 4, the percentage of sucrose in a beverage was determined using density, however many commercial beverages are made with high fructose corn syrup and not sucrose. Even beverages such as juice are not primarily sucrose.

Is the percentage concentration of sucrose determined in this activity accurate? Why or why not? If it is not, what could be done to make it more accurate?

Beyond sucrose type, what other confounding factors may exist in the determination of percentage concentration of sucrose? What were potential sources of error?

Explanation / Answer

Q1.

The typical density of ocean water is about 1030 kg/m3, i.1.03 g/mL, meaning it is heavier than crude oil

Note that if this is the case, crude oil will floate over water.

This has the next direct consequences:

- Oil will cover light from the sun to the ocean

- No sunlight means --> No heat transfer

- No sunlight means --> no photosynthesis

- IF no photosynthesis, no plankton is produced, plankton is crucial for many aquatic species.

Other criteria:

- Oil will cover animals such as seagulls, fish, turtles, crabs, etc...

- This will increase rate of death for animals, increase of animal decay will favour low oxygen concentrations (also, due to the drop of temperature, O2 is less soluble)

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