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Old 19 March 2006, 02:32 PM
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alcazar
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Question AS chemistry coursework.......HELP!!

My lad's chem coursework is due in tomorrow, (yes, I know!!! )

Part of it is labelled "justification", and it's on the end of a write up about titration. The planner tells us that it enables the student to get the highest marks, but not what it means.
It urges the student to discuss it with the teacher, but of course, idiot boy hasn't.

Does anyone know what it means, and how he can access these marks?

Thanks in advance,
Alcazar
Old 19 March 2006, 02:35 PM
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john_s
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*Scratches head thinking back to A level chemistry*

Probably a bit hard to tell without more information... Maybe it's asking for justification of the method chosen, chemicals used, etc.

John.
Old 19 March 2006, 02:43 PM
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Bubba po
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It's probably the discussion of sources of error and the mathematical expression of the experimental concentrations used.
Old 19 March 2006, 02:46 PM
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Thomas Wainwright
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It could easily be either of the above 2 posts.

As said more info would help such as which exam board?

Have you tried Google, there seems to be a far bit of stuff about it on there.
Old 19 March 2006, 02:48 PM
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Chip Sengravy
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What's titration?
Old 19 March 2006, 02:51 PM
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Thomas Wainwright
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Originally Posted by Chip Sengravy
What's titration?

From memory, and it's been years since i did my A Level, it's a laboratory technique by which you can determine the concentration of an unknown reagent using a standard concentration of another reagent that chemically reacts with the unknown.
Old 19 March 2006, 02:53 PM
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kingofturds
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Originally Posted by Thomas Wainwright
From memory, and it's been years since i did my A Level, it's a laboratory technique by which you can determine the concentration of an unknown reagent using a standard concentration of another reagent that chemically reacts with the unknown.
hows the tour?
Old 19 March 2006, 02:54 PM
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Warwick-hunt
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What's titration
its pslewis, he's a tit and we've all had our ration of him
titration
Old 19 March 2006, 02:57 PM
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Thomas Wainwright
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Originally Posted by kingofturds
hows the tour?

It seems to be on hold. Business and family commitments have come into play.

We didn't go down too well in Australia for some reason...

It'll have to be restarted soon.
Old 19 March 2006, 02:59 PM
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John Catlin
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Have a read of this :-

http://www.wpbschoolhouse.btinternet...BasesSalts.htm
Old 19 March 2006, 03:00 PM
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kingofturds
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from my days as head of science at oxford uni

A titration is a method of analysis that will allow you to determine the precise endpoint of a reaction and therefore the precise quantity of reactant in the titration flask. A buret is used to deliver the second reactant to the flask and an indicator or pH Meter is used to detect the endpoint of the reaction.
Old 19 March 2006, 03:01 PM
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scooby_matt
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Originally Posted by kingofturds
from my days as head of science at oxford uni

A titration is a method of analysis that will allow you to determine the precise endpoint of a reaction and therefore the precise quantity of reactant in the titration flask. A buret is used to deliver the second reactant to the flask and an indicator or pH Meter is used to detect the endpoint of the reaction.
Which site did you nick that from?
Old 19 March 2006, 03:02 PM
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David Lock
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He must have some mates doing exactly the same???????? Just get on the dog...
Old 19 March 2006, 03:02 PM
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alcazar
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It's Salters AS chemistry, guys.
Thanks for the responses so far.

Alcazar
Old 19 March 2006, 03:05 PM
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Originally Posted by scooby_matt
Which site did you nick that from?

googled..i mean thats 30 years of lecturing at oxford uni
Old 19 March 2006, 03:06 PM
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scooby_matt
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Originally Posted by kingofturds
googled..i mean thats 30 years of lecturing at oxford uni
Old 19 March 2006, 03:45 PM
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krazy
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This is the write up format I seem to remember:

http://www.newi.ac.uk/buckleyc/wslr2.htm
Old 19 March 2006, 06:30 PM
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seab
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the justification bit, is all about dicussing your results, (did the experiment go as planned? did you have to change things as you were going as they didnt conform to your original idea, do the results you came up with, follow the theory that you were testing? would you do anything different next time? could you improve it anyway) (thats all i can remember from my AS level chem course work for which funny enough i did a titration
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