Pure chemistry, applied chemistry, or both?

Question

I'm trying to figure out if these actions would be pure chemistry, applied chemistry, or both pure and applied chemistry.

1. Determining how much energy is released when iron forms rust.
2. Determining how the size of silver grains on photographic film affects the resolution of the finished print.
3. Isolating a chemical compound from the leaves of a newly discovered tropical plant.
4. Developing a method of purifying the polluted well water in a small town.
5. Determining what elements exist on a distant star.

Your help is greatly appreciated! Thanks.

Answer 1

Here's what I'd say

1. Pure
2. Applied
3. Pure
4. Applied
5. Pure

Answer 2

Both, all of the above.
1. Could determine a new physical constant, not yet discovered. Yet it could solve the problem of corrosion of useful things.
2. Could produce better silver halide film. Could also lead to know what affects the crystalline habits of substances.
3. Could lead to discovery of a hitherto unsuspected kind of chemical structure. Could lead to a cure for diseases.
4. The well water is purified; a new origin of pollution is discovered.
5. Satisfaction in knowing the composition of the star. Could lead to prospecting for elements on earth. For example: Is it absolutely impossible that all the technetium and promethium created at the Big Bang (and afterwards!) have completely decayed away?

Answer 3

Applied. Pure chemistry is for chemists. Chemical engineers take processes and find uses for them in new goods. Such as making designs and planning projects too.

Answer 4

I would have to agree w/ Steve and Tony on this one,

Depending on the actual experiment, it could use concepts from both pure & applied chemistry.