Ammonia 08 Exam

[mals22]

In the assesors report they have two hydrocarbons circled, C6H14 and C8H18 aswell as N2 and H2.
Im just wondering what exactly do these hydrocarbons have to do with ammonia or if it they colours represented a key for common mistakes or something?

Thanks!

[mals22]

Annnnyone?

[oneoneoneone]

I don't study ammonia but i would imagine they are a source of hydrogen (via cracking)

[aishuwa1995]

I don't think the text book mentions hydrocarbons..perhaps you would get the mark for just circling H₂ and N₂ (I gave myself the mark..haha)

[mals22]

I don't think the text book mentions hydrocarbons..perhaps you would get the mark for just circling H₂ and N₂ (I gave myself the mark..haha)

Yeah i was just a little confused as to where it came from cos its not covered in my book either..
Also is steam reforming only with CH4? or can it be any hydrocarbon??

I don't study ammonia but i would imagine they are a source of hydrogen (via cracking)

With cracking i thought that was only to produce ethane? Or it can work to get H on its own aswell?

[oneoneoneone]

I'm not 100% sure about the cracking but I reckon it does have something to do with the Hydrocarbons being a source of hydrogen.

[mals22]

I'm not 100% sure about the cracking but I reckon it does have something to do with the Hydrocarbons being a source of hydrogen.

Ok, thanks

[t35t]

Sorry! this isn't the OP's question, but I have a similar question to this:
question 5a of the examiners report for 2008 shows that:
for sulfuric acid production:
H2, O2, FeS2 are circled as playing a part in its production.
In the whole of the contact process, I don't recall ever using H2 gas at any stage.... the only thing that comes to mind is the extraction of Sulfur from the combustion of natural gas- but that feels like a very long shot off and doesn't seem to even relate to the process when you consider FeS2 as a raw material. I'm just wondering, was the circling of H2 a mistake? it's coloured differently (green) compared for blue for O2 and FeS2?

[mals22]

Sorry! this isn't the OP's question, but I have a similar question to this:
question 5a of the examiners report for 2008 shows that:
for sulfuric acid production:
H2, O2, FeS2 are circled as playing a part in its production.
In the whole of the contact process, I don't recall ever using H2 gas at any stage.... the only thing that comes to mind is the extraction of Sulfur from the combustion of natural gas- but that feels like a very long shot off and doesn't seem to even relate to the process when you consider FeS2 as a raw material. I'm just wondering, was the circling of H2 a mistake? it's coloured differently (green) compared for blue for O2 and FeS2?

Yeah that was the same as mine, i thought it was done in some sort of key, because the same things were circled in different areas where they didn't make sense to be.
I think it was like common errors or something?