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OCR A GCSE Chemistry Paper 4 Higher Tier (J248 04) - 13th June 2023 [Exam Chat]

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Reply 20
Original post by Okiiiip
Quick answers for calculation dump : 4.704 for last question, average titre 24, yield 46.8, 96cm for volume


Average titre cannot be 24 because 23.9 and 24.1 arent concordant
Reply 21
what was the answer for the first calculation about the bromide and water was it like 0.002 something
Reply 22
Original post by 111maths444
also what did ppl put for the last 5 marker? which titre values did everyone use

24 and 24.1
Reply 23
Original post by gyuj1nss
what was the answer for the first calculation about the bromide and water was it like 0.002 something


0.053?
Reply 24
Original post by 111maths444
what did people get for the choosing polymer question?
and what did people put for the 6 marker?

B as it had the highest softening temperature
Reply 25
Original post by Blobirama
0.053?

wait did you use the 2cm^3 because i think i got the same then
Reply 26
I messed up with the cm cubed and dm cubed conversions on the 5 marker and 4 marker quantitative questions. How many marks will I get for those questions if it were only the conversions That i got wrong. I put 1cm ^3 = 1000dm^3.
Reply 27
Original post by gyuj1nss
wait did you use the 2cm^3 because i think i got the same then

You had to divide it by 1000
Reply 28
Original post by gyuj1nss
wait did you use the 2cm^3 because i think i got the same then

Fuxk i got 0.053 idk what was going on in my mind i was zoned out for most of it that i changed it to 53 if it was a 3 marker ill get 2 right?
Reply 29
Original post by Blobirama
Average titre cannot be 24 because 23.9 and 24.1 arent concordant


24 is 0.1 of 23.9 and 24.1, ive asked every1 they got the same answer.
Reply 30
Original post by blobirama
0.053?


Original post by blobirama
b as it had the highest softening temperature


its 0.53 not 0.053

Original post by 1iwbebdi
fuxk i got 0.053 idk what was going on in my mind i was zoned out for most of it that i changed it to 53 if it was a 3 marker ill get 2 right?
Reply 31
Original post by Blobirama
You had to divide it by 1000

yeah i did that it took me so long to realise i had to use the 2cm^3 info tho
What did u get for the relative molecular mass?
Reply 33
Original post by Student16061
What did u get for the relative molecular mass?


5@
Original post by Okiiiip
5@


5? Why would it be 5?😭
Reply 35
Original post by Okiiiip
its 0.53 not 0.053

Yh i mistyped
Reply 36
I’m so ****ed cause I changed my answer for the concordant titre question from 24 to 24.05 and that means I got the final question wrong too ☹️☹️☹️ hope I get ecf marks at least
Reply 37
Original post by Okiiiip
24 is 0.1 of 23.9 and 24.1, ive asked every1 they got the same answer.

They must he concordant within eachother. The range must be less than 0.1 .
Look this guy explains it
https://youtu.be/NFmECpi4TJs
Reply 38
Original post by nia01207
I’m so ****ed cause I changed my answer for the concordant titre question from 24 to 24.05 and that means I got the final question wrong too ☹️☹️☹️ hope I get ecf marks at least

It’s not wrong, 24.1 24 and 23.9 arent concordant
Reply 39
Original post by Blobirama
It’s not wrong, 24.1 24 and 23.9 arent concordant


no apparently concordant applies to them and most people got 24

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