A Level Chemistry Question Help Watch

TomHibbs12
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Hi - stuck on a chemistry question.

We are carrying out an acid-base titration in which the acid has been diluted using a standard solution. The question asks why you would then titrate with the alkali in the burette - and transfer the acid into a conical flask, instead of the other way round (with the alkali in a conical flask and acid in the burette)

Yep, I'm confused too. Thanks for any help.
Tom
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Theo The Bold
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(Original post by TomHibbs12)
Hi - stuck on a chemistry question.

We are carrying out an acid-base titration in which the acid has been diluted using a standard solution. The question asks why you would then titrate with the alkali in the burette - and transfer the acid into a conical flask, instead of the other way round (with the alkali in a conical flask and acid in the burette)

Yep, I'm confused too. Thanks for any help.
Tom
Now bear with me here as I'm also doing chemistry A-level at the moment

So what I think it is, is that you've got a set volume of your standard solution. Now a titration is used to see how much, in this case alkali, would need to be added to reach an end point and to do this you would add an excess of alkali. That is because you're trying to determine the concentration of alkali as you already know the concentration of your standard solution. So in short you don't know how much alkali you'd need to add to your standard solution to reach the end point.
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shohaib712
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(Original post by TomHibbs12)
Hi - stuck on a chemistry question.

We are carrying out an acid-base titration in which the acid has been diluted using a standard solution. The question asks why you would then titrate with the alkali in the burette - and transfer the acid into a conical flask, instead of the other way round (with the alkali in a conical flask and acid in the burette)

Yep, I'm confused too. Thanks for any help.
Tom
Typically you would add the standard solution to the conical flask ( acid) as you know both its volume and conc. Therefore we add alkali using the burette to measure total volume that neutralised the acid. TBH you can do it either way so I agree that its a confusing question.
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TomHibbs12
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Thanks for both answers
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