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So how was chemistry P12 today?

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Yup, chiral centers were 7.
Na2O+SO3=Na2SO4 option D that's what I did
Didn't it say neutralization. Sodium oxide would form nahso4 and h20 and I couldn't get that but I did get na2hpo4 and h20 fir phosphoric acid and sodium oxide
 
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It was 0.1 mole if oxygen and 0.3 moles of the products each dont remember the answer tho
Yea the ratio was 1:5 so the moles of oxygen was o.5 using that u get volume and that was 12 exactly and in the question it said 12 is required to react completely so none in left over then u use the ratio between the hydrocarbon and co2 which was 1:3 I think and u get 0.3 so the volume left is 7.2.. Or atleast that's what I did :p
 
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16.8 was of products and 1.2 of oxygen, well that's what I got

As I said before I'm not so sure about this one.
I dunno about that either but I think you're right about na2o and sulfuric acid. Ugh I was hoping to get above 38 in p1 cause that's the only way I could balance my grade! I completely messed up the practical and p2 :(
 
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What about the first in section B, the viscous one? A or B?
Ammonia one was D as it did not react as a base?
 
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What about the first in section B, the viscous one? A or B?
Ammonia one was D as it did not react as a base?
The viscous was A I know for sure coz my teacher told me and yes the ammonia one was d too what about the bond energy question 315 or 351 and the one about kp I just guessed A I think it was 5.76 or something
 
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The viscous was A I know for sure coz my teacher told me and yes the ammonia one was d too what about the bond energy question 315 or 351 and the one about kp I just guessed A I think it was 5.76 or something
The Kp one yes it was 5.37 or something like that.
Couldnt do the bond energy and wrote 351
 
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For the diester ya I think I got something with that and what HX graph? And what about the one that have electro negativity as x axis and melting point at y axis I chose B
The di-ester would be formed and was something OCO?
And the HX graph question was surely A
 
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For the diester ya I think I got something with that and what HX graph? And what about the one that have electro negativity as x axis and melting point at y axis I chose B
Yup B was right in that one
HX graph in which was from Group 7, peak was at B of ionization energies so previous one was correct
 
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