Rockitty99
Badges: 9
Rep:
?
#1
Report Thread starter 3 years ago
#1
I didn’t see a thread for this so here y’all go. How was it? (Edexcel)

Update: I got hold of the paper just recently, so if anyone wants it just email me your email addresses and I’ll be glad to send it to you.
0
reply
MrRJ
Badges: 5
Rep:
?
#2
Report 3 years ago
#2
How did answer the 6 mark question about determining the rate of reaction?
0
reply
a271999
Badges: 3
Rep:
?
#3
Report 3 years ago
#3
What u think the grade boundary is gonna be for an a*??
0
reply
a271999
Badges: 3
Rep:
?
#4
Report 3 years ago
#4
(Original post by MrRJ)
How did answer the 6 mark question about determining the rate of reaction?
u had to quench then titrate with an acid at different times and draw conc/time graph to get the rate from the gradient.
0
reply
bfis
Badges: 7
Rep:
?
#5
Report 3 years ago
#5
what were the answers for mcqs? i wanna know whether most of mine turned out right or not
0
reply
bfis
Badges: 7
Rep:
?
#6
Report 3 years ago
#6
(Original post by a271999)
What u think the grade boundary is gonna be for an a*??
I think they may be high. They usually always are, but since I feel like this paper wasn't all that hard, it might be high. A lot of my friends did really well.
0
reply
Aima qureshi
Badges: 6
Rep:
?
#7
Report 3 years ago
#7
Worst exam ever.
0
reply
Aima qureshi
Badges: 6
Rep:
?
#8
Report 3 years ago
#8
Guys what was the order of reaction that you got?
0
reply
funkypineapple
Badges: 11
Rep:
?
#9
Report 3 years ago
#9
(Original post by Aima qureshi)
Worst exam ever.
Same

What did you guys get for kc ?
0
reply
Rockitty99
Badges: 9
Rep:
?
#10
Report Thread starter 3 years ago
#10
(Original post by bfis)
I think they may be high. They usually always are, but since I feel like this paper wasn't all that hard, it might be high. A lot of my friends did really well.
I agree with this. I found the exam really easy too and so did my friends. I hope they’re not really really high though
0
reply
a271999
Badges: 3
Rep:
?
#11
Report 3 years ago
#11
(Original post by funkypineapple)
Same

What did you guys get for kc ?
4.25....
0
reply
Rockitty99
Badges: 9
Rep:
?
#12
Report Thread starter 3 years ago
#12
(Original post by funkypineapple)
Same

What did you guys get for kc ?
I got 4.82


(Original post by Aima qureshi)
Guys what was the order of reaction that you got?
I got r=k[halogenoalkane], dunno if it’s correct or not as some said NaOH was there and some said it wasn’t

And what did y’all write for ethanol being used instead of water?.
0
reply
Bebou
Badges: 5
Rep:
?
#13
Report 3 years ago
#13
What did u guys get for the rate equation and rate constant?
I got first order for the halogenoalkane
0
reply
bfis
Badges: 7
Rep:
?
#14
Report 3 years ago
#14
(Original post by Bebou)
What did u guys get for the rate equation and rate constant?
I got first order for the halogenoalkane
right? I got first order too, but so many of my friends told me that it was wrong. If it does turn out wrong, will we have error carried forward for it?
0
reply
Midosept
Badges: 4
Rep:
?
#15
Report 3 years ago
#15
Hi
0
reply
Midosept
Badges: 4
Rep:
?
#16
Report 3 years ago
#16
Guys, for the 6 mark question regarding finding the rate, I said measure at 2 minute intervals but didn't state for how long like 10 minutes for example, and said rate would be of mass of ppt (cuz I used AgNO3 addition to C4H9Br) not change of mass...I'm just worried that they would reject that cuz I remember I've seen them reject that before..making me lose all 6 marks..what do u guys think?
0
reply
Sam19KY
Badges: 8
Rep:
?
#17
Report 3 years ago
#17
What did you guys get for the rate constant value in section c ? did you use the volumes of the solutions in your calculation or the volume of each reactant divided by the volume of the whole reaction mixture ?
0
reply
The Korean girl
Badges: 6
Rep:
?
#18
Report 3 years ago
#18
(Original post by a271999)
4.25....
we're on the same boat, I got 4.25 too!!!!
0
reply
The Korean girl
Badges: 6
Rep:
?
#19
Report 3 years ago
#19
(Original post by bfis)
right? I got first order too, but so many of my friends told me that it was wrong. If it does turn out wrong, will we have error carried forward for it?
No worries, it is first order ^^
so the rate equation is
rate= k [C5H9Br]

also, the reaction is Sn1, as only 1 specie is involved in the RDS
0
reply
The Korean girl
Badges: 6
Rep:
?
#20
Report 3 years ago
#20
(Original post by Rockitty99)
I got 4.82




I got r=k[halogenoalkane], dunno if it’s correct or not as some said NaOH was there and some said it wasn’t

And what did y’all write for ethanol being used instead of water?.
The ethanol q came out in the one of the paper before, it's because water can be reduced to OH- form NaOH
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

What support do you need with your UCAS application?

I need help researching unis (11)
12.79%
I need help researching courses (7)
8.14%
I need help with filling out the application form (5)
5.81%
I need help with my personal statement (35)
40.7%
I need help with understanding how to make my application stand out (22)
25.58%
I need help with something else (let us know in the thread!) (2)
2.33%
I'm feeling confident about my application and don't need any help at the moment (4)
4.65%

Watched Threads

View All