Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Candidate
Number Number
Pearson Edexcel Level 3
GCE
Tuesday 23 May 2023
8CH0/02
Paper
Morning (Time: 1 hour 30
reference
minutes)
Chemistr
Advanced Subsidiary
y
PAPER 2: Core Organic and Physical
Chemistry
You must have: Total
Scientific calculator, Data Booklet, ruler Marks
Instructions
• Use
• IfFillpencil
black ink or ball‑point pen.
is used for diagrams/sketches/graphs it must be dark (HB or B).
• in the boxes at the top of this page with your name,
centre number and candidate number.
• Answer all
• Answer
provided
the questions in the spaces
questions.– there may be more space than
you need.
Information
• The
• – usemarks
total mark for this paper is 80.
The for each question are shown in brackets
• For the question marked with an asterisk (*), marks will be awarded for your
this as a guide as to how much time to spend on each question.
ability to structure your answer logically, showing the points that you make
• are related or follow on from each other where appropriate.
A Periodic Table is printed on the back cover of this paper.
Advice
• Read
•
each question carefully before you start to answer it.
Show all your working in calculations and include units where appropriate.
• Check your answers if you have time at the
Turn over
end.
final
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you
change your mind about an answer, put a line through the box and
then mark your new answer with a cross .
1 This question is about collision theory.
The Maxwell‑Boltzmann distribution of molecular energies for a reaction at a
particular temperature is shown in the graph.
Add another line on the graph to represent the same reaction with the same
number of particles at a higher temperature.
Number of
particles with
energy, E
Energy, E
(Total for Question 1 = 2 marks)
2
,2 This question is about alkanes and some of their reactions.
(a) Hexane is a saturated hydrocarbon.
State what is meant by the term ‘saturated hydrocarbon’.
Your answer should refer to both words in the term.
(2)
(i) Write the overall equation for this reaction of methane with
chlorine. State symbols are not required.
(1)
(ii) Calculate the maximum mass, in grams, of chloromethane produced
when
7.00 g of chlorine gas reacts completely with excess
methane. [Molar mass of CH3Cl = 50.5 g mol–1] (2)
3
Turn over
, (iii) Write an equation for a termination step for this
reaction. State symbols are not required.
(1)
(iv) Further substitution of chloromethane can occur, producing
dichloromethane, which is a liquid at room temperature.
Calculate the maximum volume, in cm3, of dichloromethane liquid that
could be produced from 12.5 g of chloromethane.
Give your answer to an appropriate number of significant figures.
(3)
CH3Cl(g) + Cl2(g) → CH2Cl2(l) + HCl(g)
[Density of dichloromethane, CH2Cl2(l) = 1.32 g cm–3]
4
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller OCR123. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
