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Chemistry, Physics, Biology Paper 3 GUESS

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@ yaser 37

aaaaaaaaaaaaaaa ppl read this quickly and ill edit it
and then the paper i told i still need to confirm my varient!!!!!!!!!!!!ill do it tomorrow!
 
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Princess

Thanks for info

I will memorize that but will still do it

that's for 34??


thanks
 
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For bio paper 33 there is visking tube , dilutions , benedicts test and microscopy . I think the first three are related in one question.
 
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@maddie: I guess it has something to do with a glucose solution, first you need to conduct a benedicts test about that.
Later on you have to conduct a serial dilution to make it vary in concentration.
Finally you need to perform an osmosis exp by using visking tube as its semi permeable membrane :) hope that helped.
 
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Visking tubing is like a membrane which is partially permeable and allows small molecules or atoms to cross through .If you are given a transparent paper like thing make it wet and tie it at one end with a thread .Then fill it with water or any solution you are given or says in the paper then tie it at the top when filled . It will become like a tube like structure. then you place the visking tube in a beaker with water or solution.
 
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@BlackVelvet : so the first one is something like food test O_O and then about osmosis ?
 
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hey guys is there any site or video through which i can thoroughly understand the saltanalysis and the questions relating energetics.. i'll be appearing in the chemistry33 and physics33 please help required.. if someone can pm me i'll be really thankfull..
 
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@deathvalley: yep exactly. so dilution, then food benedicts test to estimate concentration, then osmosis exp with visking :)

good luck!

@all people who ask for pm: all I can guess is updated at the front page. if you think something isnt clear at the thread, them pm me :)
 
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hi flasha im taking the same 31 bio chem and phy
so i think we can help each other
i live in ksa
can u om me about any info u have on the practical
 
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