8462/1H Chemistry Paper 1 2023 Unofficial Markscheme

There was a question about which out of aluminium, silver and copper are the best for different wires.
How metals conduct electricity
Why the polymer chain is a solid and methane is not

polymer more chains more energy required break down and more tuff

Reply 21

grenadierfra

1

Original post by Caotica

Question 1: describe the plum pudding model (2 marks)

A ball of positive mass (1) with negatively charged electrons embedded evenly within it(1)

Question 2: in what order were the subatomic particles discovered (1 mark)

Electrons
Protons
Neutrons

Hi, for question 1 is it vital that yoy mention electrons are negatively charged since I just stated that electrons were embedded evenly within it. Thanks.

Reply 22

Big_Akz07

Original post by Sorite

Can we use this discussion to produce an unofficial mark scheme for the paper we just had today? :smile:

Does anyone know the titration question and how they did it

Reply 23

mahm._.07

You lot know the systematic random and human error question? For the triple? Which one was it? I put systematic i think

Reply 24

Hartyredsaw

1

what did evryone get for 4 marker atom economy?

Reply 25

Abdell

184 is the right answer

Reply 26

Caotica

12

Original post by grenadierfra

Hi, for question 1 is it vital that yoy mention electrons are negatively charged since I just stated that electrons were embedded evenly within it. Thanks.

Probably not vital. Always best to give extra info just incase the exam board are picky like that tho

Reply 27

Taha_1

5

Original post by grenadierfra

Hi, for question 1 is it vital that yoy mention electrons are negatively charged since I just stated that electrons were embedded evenly within it. Thanks.

No you don’t need to, because electrons were discovered before the plum pudding model so every knew an electron was negatively charged

Reply 28

nasjdlajnds

1

Original post by Hartyredsaw

(Original post by raindropxox)One of them was which metal was aluminium and I said C, i think most people I know said C
I got 60000 for the last question and so did my friends, not sure if we all did it wrong lol

yh i got c too
but 60,000
how?
cos 100kg/48+16 is 1.25
so 1.25*2 for moles of chlorine is 2.5
2.5* 24dm3 is 60dm3
can u tell me how u did it?

isnt it 60dm3 but 60000cm3

Reply 29

Neda2038

3

Original post by Hartyredsaw

(Original post by raindropxox)One of them was which metal was aluminium and I said C, i think most people I know said C
I got 60000 for the last question and so did my friends, not sure if we all did it wrong lol

yh i got c too
but 60,000
how?
cos 100kg/48+16 is 1.25
so 1.25*2 for moles of chlorine is 2.5
2.5* 24dm3 is 60dm3
can u tell me how u did it?

converted it to grams

Reply 30

daniel norris

1

Original post by Sorite

Can we use this discussion to produce an unofficial mark scheme for the paper we just had today? :smile:

got mine on wednesdsay anything helps

Reply 31

Bololcans

Original post by daniel norris

got mine on wednesdsay anything helps

Do you have a copy of the mark scheme?

Reply 32

HannahP7

Original post by Sorite

Can we use this discussion to produce an unofficial mark scheme for the paper we just had today? :smile:

https://www.studocu.com/en-gb/u/75533621?sid=01701112246 Was this the paper that you guys did?

Reply 33

HV1234

2

Original post by HannahP7

https://www.studocu.com/en-gb/u/75533621?sid=01701112246 Was this the paper that you guys did?

Hey do you have a link like this for physics too?

Reply 34

HV1234

2

Original post by HannahP7

https://www.studocu.com/en-gb/u/75533621?sid=01701112246 Was this the paper that you guys did?

Hey!

Do you have a similar link for Physics Paper 1?

If do, could you please post by replying to this thanks!

Reply 35

Clareeeeeee

Original post by HannahP7

https://www.studocu.com/en-gb/u/75533621?sid=01701112246 Was this the paper that you guys did?

U don’t have a mark scheme for that do you?

Reply 36

7414

4

Original post by Caotica

Question 1: describe the plum pudding model (2 marks)

A ball of positive mass (1) with negatively charged electrons embedded evenly within it(1)

Question 2: in what order were the subatomic particles discovered (1 mark)

Electrons
Protons
Neutrons

Do u have the paper can you send it to me