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Topic: Determine concentration titration  (Read 4091 times)

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Offline huskywolf

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Determine concentration titration
« on: December 15, 2009, 03:29:15 PM »
when calculating with CaVa/a=CbVb/b

if the values of a+b are 2(the mol ratios) do I cancel them out?because they are the same?
I was told to cancel it out when they are 1,just wondering if the same applies if they are 2,
once they are the same?

Offline savy2020

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Re: Determine concentration titration
« Reply #1 on: December 15, 2009, 04:17:06 PM »
if the values of a+b are 2(the mol ratios) do I cancel them out?because they are the same?
How can you tell they{a,b} are the same?
:-) SKS

Offline Borek

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Re: Determine concentration titration
« Reply #2 on: December 15, 2009, 04:20:16 PM »
If they are the same, they cancel out, this is simple algebra. Usually question is not if they cancel out, but what values they have - and that has to be checked using balanced reaction equation.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline huskywolf

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Re: Determine concentration titration
« Reply #3 on: December 15, 2009, 04:21:10 PM »
hello
they are only the coefficents on each side of the balanced equation ,I know 2mol of a and 2mol b is involved in the titration just wondering do I this regard them because the ratio is the same

Offline savy2020

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Re: Determine concentration titration
« Reply #4 on: December 15, 2009, 04:31:50 PM »
if the values of a+b are 2(the mol ratios) do I cancel them out?because they are the same?
Was that a+b or a&b?
If it is a&b, then of course you can cancel out
:-) SKS

Offline huskywolf

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Re: Determine concentration titration
« Reply #5 on: December 15, 2009, 05:01:20 PM »
sorry maybe I am confusing, I am talking about the a underneath the concentration acid x volume acid = concentration basex volume base/b

I am asking if /a(the coefficent of moles acid which is 2) is disregarded as well as the /b
(the coefficent of moles base which is 2)

Offline savy2020

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Re: Determine concentration titration
« Reply #6 on: December 15, 2009, 05:04:10 PM »
I am asking if /a(the coefficent of moles acid which is 2) is disregarded as well as the /b
(the coefficent of moles base which is 2)
It won't hurt you to regard them . They'd anyhow cancel out.
But writing them and cancelling is conceptual.
:-) SKS

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