Advanced higher chemistry project. Aspirin determination
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a1302
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I'm currently planning my advanced higher project and I'm doing determination of aspirin. To be honest, I have no idea what I'm doing. I have a procedure but now I'm trying to create an aim and introduction and also a results table. First of all, I don't know what the aim is. I'm guessing it's something like to calculate the mass of aspirin contained in different brands of aspirin tablets and compare them. I am carrying out a titration but I have no idea what to put in the results table. I have three brands of aspirin and I have to do each one twice and have a control. Any help would be really appreciated!!
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Maker
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a1302
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#3
(Original post by Maker)
have you done titrations before?
have you done titrations before?
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303Pharma
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#4
(Original post by a1302)
I'm currently planning my advanced higher project and I'm doing determination of aspirin. !
I'm currently planning my advanced higher project and I'm doing determination of aspirin. !
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a1302
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#5
(Original post by 303Pharma)
More details please. Are you doing an actual synthesis, purification & recrystallization from base salicylic acid, & then determining yield and purity?
More details please. Are you doing an actual synthesis, purification & recrystallization from base salicylic acid, & then determining yield and purity?
http://new.chemistry-teaching-resour...H/AdvHPPAs.pdf
It's page 55 and 56
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a1302
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#7
(Original post by Maker)
This is a straight forward titration, what don't you understand about it?
This is a straight forward titration, what don't you understand about it?
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Maker
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#8
Your aim is to find out how much salicylic acid is in each aspirin tablet. Since there is about 300mg of salicylic acid in each tablet, you need a fairly dilute solution solution of NaOH. I would suggest 0.01M. If you are doing this for real, don't forget NaOH will react with the carbon dioxide in the air so don't make up a solution and leave it around, use it ASAP.
I don't see the point of a control here, its chemistry,not biology.
I don't see the point of a control here, its chemistry,not biology.
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a1302
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#9
(Original post by Maker)
Your aim is to find out how much salicylic acid is in each aspirin tablet. Since there is about 300mg of salicylic acid in each tablet, you need a fairly dilute solution solution of NaOH. I would suggest 0.01M. If you are doing this for real, don't forget NaOH will react with the carbon dioxide in the air so don't make up a solution and leave it around, use it ASAP.
I don't see the point of a control here, its chemistry,not biology.
Your aim is to find out how much salicylic acid is in each aspirin tablet. Since there is about 300mg of salicylic acid in each tablet, you need a fairly dilute solution solution of NaOH. I would suggest 0.01M. If you are doing this for real, don't forget NaOH will react with the carbon dioxide in the air so don't make up a solution and leave it around, use it ASAP.
I don't see the point of a control here, its chemistry,not biology.
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303Pharma
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#11
(Original post by a1302)
This is the link:
http://new.chemistry-teaching-resour...H/AdvHPPAs.pdf
It's page 55 and 56
This is the link:
http://new.chemistry-teaching-resour...H/AdvHPPAs.pdf
It's page 55 and 56
In which case i guess the aim is to analyze and quantify the ratio of API : excipient in that brands formulation, and compare.
The results would include all measurements taken; masses, concentrations, volumes, titration results etc.
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