IAL Chemistry Unit 1 January 2020 Discussion

7kindsofbored

Haven't seen a discussion thread yet so thought I would start one. How did it go for ya'll?

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Reply 1

username5113644

Original post by L I G H T

Haven't seen a discussion thread yet so thought I would start one. How did it go for ya'll?

It was gooood, bruh. I low-key think it was too good, worried I must've messed up somewhere, hopefully not...

Reply 2

7kindsofbored

Original post by Meowmeownerd

It was gooood, bruh. I low-key think it was too good, worried I must've messed up somewhere, hopefully not...

I messed up on the ideal gas equation question. What did you get for the empirical formula of the compound produced from ethene reacting with oxygen?

Reply 3

username5113644

Original post by L I G H T

I messed up on the ideal gas equation question. What did you get for the empirical formula of the compound produced from ethene reacting with oxygen?

C2H4O

Reply 4

7kindsofbored

Original post by Meowmeownerd

C2H4O

do you think I'll get the mark without showing my working out?

(edited 4 years ago)

Reply 5

Omar_8503

Nah it said you must show your working

Reply 6

Ai Shuan

Original post by L I G H T

I messed up on the ideal gas equation question. What did you get for the empirical formula of the compound produced from ethene reacting with oxygen?

Hi, what did you guys get for the ideal gas equation question? How do we apply the ppm into the question??

Reply 7

Omar_8503

Does anyone know the answer for bromine’s maximum mass percentage in hexane?
I got 93.95% cuz C6Br14

Reply 8

7kindsofbored

Original post by Omar_8503

Does anyone know the answer for bromine’s maximum mass percentage in hexane?
I got 93.95% cuz C6Br14

same

Reply 9

Omar_8503

Original post by Ai Shuan

Hi, what did you guys get for the ideal gas equation question? How do we apply the ppm into the question??

U had to calculate the volume of ethene in the ripening room. As it was 100ppm, u would divide the full volume by 1 million then multiply by 100, then use pv=nrt to find n which was 0.91

Reply 10

7kindsofbored

do you think the grade boundaries will be higher or lower than last years January paper? I did that one and found it really easy so was surprised that for an A you only needed 60 / 80

Reply 11

username5113644

alright, so one major scare later, I'm fine lol

(edited 4 years ago)

Reply 12

Omar_8503

Original post by L I G H T

do you think the grade boundaries will be higher or lower than last years January paper? I did that one and found it really easy so was surprised that for an A you only needed 60 / 80

Edexcel’s really inconsistent with its UMS conversions. In 2014 papers u had to get full raw marks to get full UMS. I think we’ll have to wait and see...

Reply 13

username5113644

yes!yes! so happy lol... I think we need to write till 3 sf tho so I got 0.909

Reply 14

7kindsofbored

Original post by Omar_8503

Edexcel’s really inconsistent with its UMS conversions. In 2014 papers u had to get full raw marks to get full UMS. I think we’ll have to wait and see...d

shoot, I'm stressed now. Messed up the whole pv=nrt question so five marks have been lost already

Reply 15

username5113644

Original post by Omar_8503

Does anyone know the answer for bromine’s maximum mass percentage in hexane?
I got 93.95% cuz C6Br14

same

Reply 16

username5113644

Original post by L I G H T

shoot, I'm stressed now. Messed up the whole pv=nrt question so five marks have been lost already

it's okay, I guess. Edexcel is a little sick in the head lol. I think the gt will turn out to be real low or something. personally, I feel that this paper was real easy. I finished it in an hour. I believe miracles do happen 😂 btw where are y'all from