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National 5 Chemistry

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Original post by Rebeccahughes15
Wait...there was a 2b?


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Probably not lol. I wrote 2b because I couldn't remember. It could of been an ii lol. Don't worry :smile:

Original post by Ethan100
For the completing the diagram did you put a stopper on the test tube ? I didn't, will I get it all wrong ?


I'm the same as you. I hope they'll give us the mark
Original post by Rebeccahughes15
Wait...there was a 2b?


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Yeah, it was the repeating unit...

Original post by A+Hunter
The answer for the last one was B.

The answer for the ester one was D, so yeah you got this one right, But the last one wrong.



Yes.


I got B as last one.... As it's a precipitation reaction but my brother(does medicine) says it was A as it was displacement, so I'm unsure...
Original post by Lewis H01
Yeah, it was the repeating unit...



I got B as last one.... As it's a precipitation reaction but my brother(does medicine) says it was A as it was displacement, so I'm unsure...


Well if your brother is right then I've got 19 out of 20. I thought the exact same as your brother.
I don't remember seeing a repeating unit question 😂😂😂😂


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Original post by A+Hunter
Probably not lol. I wrote 2b because I couldn't remember. It could of been an ii lol. Don't worry :smile:



I'm the same as you. I hope they'll give us the mark


Hopefully man, but you know the SQA can be quite picky, For the shortened structural formula question did you put double bonds in or no ? I didn't because it wasn't in the shortened structural formula

What are you hoping for overall as a grade including assignment ?
Q3 Was the pressure graph thing right?
For part a you had to pick one of the three forms:
I can't remember what they were called, But I picked the one on the left and the one in the middle.

Then for the table I chose pressure = 4 and temperature = 500

Then for the gfm I can't remember 17.3?
I drew a section of the polymer for the first part

Then a section of the momomer of the acid for part 2


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Original post by Ethan100
Hopefully man, but you know the SQA can be quite picky, For the shortened structural formula question did you put double bonds in or no ? I didn't because it wasn't in the shortened structural formula

What are you hoping for overall as a grade including assignment ?


No I didn't put double bonds in. Looking back I regret it :/

I was hoping for an A and I'm still hopeful :biggrin:

Assignment anything above 15 would be nice
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Jay431
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Original post by A+Hunter
Q3 Was the pressure graph thing right?
For part a you had to pick one of the three forms:
I can't remember what they were called, But I picked the one on the left and the one in the middle.

Then for the table I chose pressure = 4 and temperature = 500

Then for the gfm I can't remember 17.3?


Yes!! Thank god someones got the same as me for the table!
Original post by A+Hunter
Q3 Was the pressure graph thing right?
For part a you had to pick one of the three forms:
I can't remember what they were called, But I picked the one on the left and the one in the middle.

Then for the table I chose pressure = 4 and temperature = 500

Then for the gfm I can't remember 17.3?


Yeh got the percentage mass 17.3 and pressure 4 and temperature 500

Can you remember what you put for the first question in this page about the two things found at 400 degrees or something?
What repeating unit for the polymer????????


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Original post by A+Hunter
No I didn't put double bonds in. Looking back I regret it :/

I was hoping for an A and I'm still hopeful :biggrin:

Assignment anything above 15 would be nice


Yeah but surely they are supposed to include double bonds in the shortened structural formula.

We just replicated what they gave us fully. I didn't know that we had to assume something
Original post by Jay431
Yes!! Thank god someones got the same as me for the table!


Haha :smile:

Original post by Lewis H01
Yeh got the percentage mass 17.3 and pressure 4 and temperature 500

Can you remember what you put for the first question in this page about the two things found at 400 degrees or something?


Yeah that's what I was going on about.

One of them was the one on the left and the other in the middle. I can't remeber their names
Original post by Rebeccahughes15
What repeating unit for the polymer????????


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Honestly, if I could remember what I drew I would show you....:smile:
Original post by Rebeccahughes15
What repeating unit for the polymer????????


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I don';t think there was a repeating unit question.

Maybe your confusing it with the Monomer for acid?

Original post by Ethan100
Yeah but surely they are supposed to include double bonds in the shortened structural formula.

We just replicated what they gave us fully. I didn't know that we had to assume something


Same. Oh well :/
For te ester question in multiple choice, I though it was A, because the ester link is always COO
There was no repeating unit at all 😂


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Original post by Marina1264
For te ester question in multiple choice, I though it was A, because the ester link is always COO


It is A don't worry.
2a. Was a section of the polymer so you did 6 carbons along? Anyone else do this?


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There was no repeating unit question but early on in paper 2 it asked you to repeat and draw monomer 3 times. If that's what you mean.

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