[Chlomc]

Can we try get a unnoffical mark scheme? Like put together all the questions we can remember

[ExamTime17]

I think I put hydrogen oxide instead of hydroxide. Would that still count?

[osama2]

hey the x ion i swear was sodium hydroxide. not just hydroxide.

[daniya12]

(Original post by osama2)
hey the x ion i swear was sodium hydroxide. not just hydroxide.

no it was hydroxide, as alkali's release hydroxide ions no sodium hydroxide . Sodium hydroxide was simply the solution left over

[osama2]

what acid did u get?

[tssf_skye]

I can't remember the questions exactly, but what did everyone write for the stuff on ammonia?

There was one about the yield and pressure.. i can't really remember haha

[kkkkkatie]

Yes i'm so happy i wrote 2.43 for the ammonia!!!!!!!!!!11

[Hajrah94]

I found that paper quite hard tbh! Am i the only one. :/


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[daniya12]

[QUOTE=Zahirajavaid;37732085]How can u make that solution to a solid?

you would evaporate it, to rid the water

[Zahirajavaid]

Omg I thought it would be something hard and had no idea what to write


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[Zahirajavaid]

(Original post by kkkkkatie)
Yes i'm so happy i wrote 2.43 for the ammonia!!!!!!!!!!11

How did u work it out?


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[Chlomc]

(Original post by Hajrah94)
I found that paper quite hard tbh! Am i the only one. :/


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So did i :L And i got an A in the jan mock. So im wishing the grade boundries are low!

[osama2]

what acid did everyone put?

[daniya12]

(Original post by Zahirajavaid)
How can u make that solution to a solid?



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you would evaporate the soultion, to rid the water

[daniya12]

(Original post by osama2)
what acid did everyone put?

it was hydrochloric acid

[kkkkkatie]

(Original post by Zahirajavaid)
How did u work it out?


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um it took quite a long time because i did it wrong at first but i did 2/28 = 0.07142851 then 0.07142851 x 34 = 2.43 :-)

[daniya12]

(Original post by tssf_skye)
I can't remember the questions exactly, but what did everyone write for the stuff on ammonia?

There was one about the yield and pressure.. i can't really remember haha

the question asked why yield would increase if pressure increased:
the answer: because there ar eless particles from the forward reaction.

its a classic question and comes up on every past paper, this is exactly what the mark schemes say

[daniya12]

what about the last question about oxygen?

[Zahirajavaid]

(Original post by kkkkkatie)
um it took quite a long time because i did it wrong at first but i did 2/28 = 0.07142851 then 0.07142851 x 34 = 2.43 :-)

How comes u multiplied it by 34
Sorry it's just I can't remember what answer I got I only remember how I worked it out


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[HopelessTurtle]

(Original post by Princess008)
what about the ion question . what x is ion alkaline something like that?

Alkaline was OH- ions,
and the other one about the Ph being 1, was H+ ions.