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Chemistry P52 GT

Whats going to be the threshold of Chem P52 - no discussion atm

  • Total voters
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M

Muhammad Haris Ghani

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TANJIAHOU said:
Di

Dilution factor 200?? If it is 200, your final solution will have a concentration of 5/200 = 0.025moldm-3. You don't use that formula c1v1 = c2v2 here. Original solution is 5moldm-3. A volume of it is to be diluted to get 1moldm-3. So dilution factor is 5 or 1/5.
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bro giving the formula is necessary in order to explain the actual methode or else marks would be deducted
 
M

Muhammad Haris Ghani

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238
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53
talha196 said:
my partition coeff was greater than 1 since i wrote conc of nh3 in water/ conc of ammonia in trichloro
and for the reason why titration wasnt done using trichloromethane, i wrote just because conc of nh3 is too low in it very little vol of h2s04 will titrate with it giving more percentage error.
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you wrote the formula incorrect it should be tricloromethane/water
 
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bro what ever u did is fine you will loose one mark for the dilution factor and stop posting the answers without confirmation of anything and i was confused about the rate being negative aswell i changed it to positive cause the inital rate gradient would always be negative and in all calculations i saw positive answer :/ . my factor cam nearly 1/5 but a little less ( you also had to include the volume of NH3 in the CHCl3 i guess) . i am loosing around 2-3 marks but i am happy :D
 
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