GT For Chem 22

[msk]

OK ppl what do u think will be the gt for chem 22?
I think 42!

 

[alevelsfreak]

45

 

[filza94]

47

 

[hassam]

FILZA....wats ur empirical formula......and reacction eq.....and wat abt Kc msk

 

[filza94]

hmm well i dont remember sorrry ..

 

[fries25]

Kc was 2.25 and not 0.44 and had no units.

Empirical formula was BaO2 (Barium per oxide) and it reacts with dilute H2SO4 to give BaSO4 and hydrogen per oxide (H2O2)

 

[ahmedrik1501]

yeah Kc has no units and i think

Gt will be around 50 smethng

 

[AizaAnjum]

its gonna be 47 or below

 

[AizaAnjum]

last year was an easy paper it got 47
besides g.t cannot be above 48 because A grade is 80 percent and for 60 marks in total 48 is genuinely 80%

 

[ErtzaAly]

GT would be i guess below 45

 

[hassam]

guyx...last question it was ester...enhanced greenhouse..refer to increasing amount of greenhouse gases retaing most of heat near earth atm thus causing global warming...doesnt reacts with ester cos didnt boil under reflux...

 

[AizaAnjum]

yeah somewherethere
atleast thats what i hope

 

[hassam]

43

 

[hassam]

u cnt say 45-47...cos half of people got .444 wrong anser....then many got no of chiral centres wrong and functional group wrong

 

[mrpaudel]

@fries25...m sure its 0.44...not 2.25....and those are correct...!!

 

[msk]

40-44...can,t be more i also think 0.44! its kinda confusing!

 

[boy2011]

i wrote carbonyl in last part nd 2 chiral centers..pls sum 1 rpl ma most asap

 

[nisurju]

i too wrote carbonyl!isnt it correct??

 

[nisurju]

i too wrote carbonyl!isnt it correct??

 

[AizaAnjum]

more than 70 percent have wrong kc values and have messed up the last parts
there were 2 centres and it eas an ester linkage =(