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#Post#: 1508--------------------------------------------------
Titration
DIR By: Sobia Sarwar
Date: December 10, 2012, 5:10 am
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difference between back and back titration
#Post#: 1510--------------------------------------------------
Re: Titration
DIR By: hkar19
Date: December 10, 2012, 5:18 am
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just simple,
titration using some strong acid/base to titrate a sample. the
strong belong to the buret, and the sample belong to the
erlenmeyer flask.
so in back titration, we just change the order: strong to the
flask, sample to the buret.
hope this helping
#Post#: 1512--------------------------------------------------
Re: Titration
DIR By: Sobia Sarwar
Date: December 10, 2012, 5:25 am
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and what iz blank titration
#Post#: 1515--------------------------------------------------
Re: Titration
DIR By: hkar19
Date: December 10, 2012, 7:17 am
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what is blank?
as long as iam being a chemistry student, i never heard about
blank titration. any explanation??
#Post#: 1516--------------------------------------------------
Re: Titration
DIR By: Chemist@
Date: December 10, 2012, 7:28 am
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A blank titration is a type of titration where you don't have a
sample. Kidding of course :D. I will just copy the text I found
here on the internet about it:
A blank titration is where you leave out the actual sample. What
you're doing is getting an idea of how much titrant would be
used up by the other components - the solvent, and so on. If
some titrant gets used up by the blank, then that amount would
have to be subtracted from the amount used by the actual sample,
so that you get a more accurate reading of its concentration.
Isn't back titration when you add the standardized solution in
excess and then titrate the excess with another standardized
solution slowly?
Edit: Found on wikkipedia about back titration:
Back titration is a titration done in reverse; instead of
titrating the original sample, a known excess of standard
reagent is added to the solution, and the excess is titrated. A
back titration is useful if the endpoint of the reverse
titration is easier to identify than the endpoint of the normal
titration, as with precipitation reactions. Back titrations are
also useful if the reaction between the analyte and the titrant
is very slow, or when the analyte is in a non-soluble solid.
#Post#: 1517--------------------------------------------------
Re: Titration
DIR By: Shiva
Date: December 10, 2012, 7:39 am
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haha. Whatever. Analytical chemistry is somewhat puzzling to me
and I'm not good at it. Well for me, titration is quite useful
in finding the end point and as I do not have PH meter, I have
to go with it, grins.
Shiva
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