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Paper 2CR - Chemistry

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Reply 20
Avatar for nusquam
nusquam
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Original post by Igcse1student
Does this look fine??image.jpg


Sorry for crappy diagram haha
Screen Shot 2016-06-15 at 7.37.19 PM.png14.8KB
Original post by Igcse1student
What about the second part?? 51,000 or something ??


Yaa i got similar no.


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Question about NH3 is strange
I said the volume will increase, how about youu


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Original post by nusquam
Sorry for crappy diagram haha


Yaa my drawing is nearly thr same with urs


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Original post by nusquam
Uhm, I think I got 52174 or something.


The same!!!!! High5


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Original post by nusquam
Uhm, I think I got 52174 or something.

Oh thanks
Is the RAM of Li 6.9?


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Original post by nusquam
Sorry for crappy diagram haha


Yeah yours makes more sense, do you reckon I'll get some marks?
I am not sure about rusting !!
What is the ans on oiling ?


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Original post by ccchiulam
Question about NH3 is strange
I said the volume will increase, how about youu


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I wrote I'll increase as well
Reply 30
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nusquam
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Original post by ccchiulam
Question about NH3 is strange
I said the volume will increase, how about youu


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I wrote that the amount of ammonia added would decrease :redface:

I could be wrong here, but the question said that the burette before had air, right, so if you remove the air, the general volume of the burette would go down (to compensate for the area taken by the air). This would reduce the difference between the amount before and the amount after, which would mean the amount of ammonia added should be decreased.

Although wait, I can't remember the question.
Original post by Igcse1student
Yeah yours makes more sense, do you reckon I'll get some marks?


I am thinking of giving one mark for inverted test tube


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Reply 32
Avatar for nusquam
nusquam
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Original post by ccchiulam
Is the RAM of Li 6.9?


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Yeah
Original post by ccchiulam
I am not sure about rusting !!
What is the ans on oiling ?


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That was the hardest question on the paper 😂 I think I wrote the bicycle chain, for galvanization I wrote the railway and for painting the car body.
I feel like I won't get any marks lol
Reply 34
Avatar for nusquam
nusquam
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Original post by Igcse1student
Yeah yours makes more sense, do you reckon I'll get some marks?


Probably, I think you'd get at least one marks, or maybe even two! :smile:
Original post by nusquam
I wrote that the amount of ammonia added would decrease :redface:

I could be wrong here, but the question said that the burette before had air, right, so if you remove the air, the general volume of the burette would go down (to compensate for the area taken by the air). This would reduce the difference between the amount before and the amount after, which would mean the amount of ammonia added should be decreased.

Although wait, I can't remember the question.


This q is really creepy :frown:
I first wrote the volume of ammonia recorded will increase , and i also wrote that the actual volume of NH3 in conical flask is lower

Actually i cant really get the q :frown:


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Reply 36
Avatar for nusquam
nusquam
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Original post by Igcse1student
That was the hardest question on the paper 😂 I think I wrote the bicycle chain, for galvanization I wrote the railway and for painting the car body.
I feel like I won't get any marks lol


You got it right :smile:

I did a stupid in the exam and wrote food can for painting >< I crossed it out but then I forgot to write car body asdfhjlkasdf.
Original post by Igcse1student
That was the hardest question on the paper 😂 I think I wrote the bicycle chain, for galvanization I wrote the railway and for painting the car body.
I feel like I won't get any marks lol


I even didnt revise this part!
I wrote bucket for galvanizing
Car body for painting
Bicycle chain(may be wrong!!) for oiling


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Original post by nusquam
Probably, I think you'd get at least one marks, or maybe even two! :smile:


Thank you! You seem like you have found the exam easy, what grade are you aiming for??
Reply 39
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nusquam
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Original post by ccchiulam
This q is really creepy :frown:
I first wrote the volume of ammonia recorded will increase , and i also wrote that the actual volume of NH3 in conical flask is lower

Actually i cant really get the q :frown:


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Sameeee. If the question was the effect on the ammonia added, then yeah, it's more, but if it was on what the effect of the air has, then it would be less ammonia is added.

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