Questions about 2007 HSC paper? (1 Viewer)

[frogbutt]

I never managed to get a proper answer for this dotpoint.

The question is:

Describe the role of a chemist in an industry or enterprise, and a chemical principle used by the chemist. (3 marks)


It's from the 2007 HSC paper.

 

[SkimDawg]

Analytical Chemist, the determination of what substances are present in samples (qualitative analysis) and how much of each is present (quantitative analysis).
You can choose like between 4 or so i think, this one is the easiest to remember.

 

[@who]

dude its in textbook. dotpoint 1 on Topic 3.

get a named scientist ( i got mine from csiro) then see what theyve done and relate the chemical principal theyve used ( e.g. AAS/ASS or molar calculations etc) and then talk about how the need collaboration etc..

 

[Azreil]

I never managed to get a proper answer for this dotpoint.

The question is:

Describe the role of a chemist in an industry or enterprise, and a chemical principle used by the chemist. (3 marks)


It's from the 2007 HSC paper.

Asdfg; hate this thing.

Off to my notes!

An industrial chemist working at a coal testing lab uses a number of instruments and principles in their daily work. Their role may include testing coal for trace elements, for CO2 emmissions and the quality of the coal -- that is, how much energy can be produced by burning a set amount of the coal.

A chemical principle they use includes absorption or emission: That is, when an element is atomised it absorbs or emits a certain wavelength of light. This is used in Atomic Absorption Spectophotometry to determine both quantitatively and qualitatively the trace metals found in coal.

 

[SkimDawg]

You dont need a named scientist, you dont need to mention how they collaborate, if u read the question lol......