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Official summer 2024 Pearson Edexcel 9CH0/03 GCE Chemistry (9CH0) Paper 03 General and Practical Principles in Chemistry Merged Question Paper + Mark Scheme $7.99   Add to cart
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Official summer 2024 Pearson Edexcel 9CH0/03 GCE Chemistry (9CH0) Paper 03 General and Practical Principles in Chemistry Merged Question Paper + Mark Scheme
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Official summer 2024 Pearson Edexcel 9CH0/03 GCE Chemistry (9CH0) Paper 03 General and Practical Principles in Chemistry Merged Question Paper + Mark Scheme

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  • August 25, 2024
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Official summer 2024

Pearson Edexcel
GCE
Chemistry (9CH0) Paper 03
General and Practical Principles in
Chemistry
Merged Question Paper + Mark Scheme




Ace your Mocks!!!

, Please check the examination details below before entering your candidate information
Candidate surname Other names


Centre Number Candidate Number




Pearson Edexcel Level 3 GCE
Friday 21 June 2024
Morning (Time: 2 hours 30 minutes) Paper
reference 9CH0/03
Chemistry  


Advanced
PAPER 3: General and Practical Principles in Chemistry

You must have: Total Marks
Scientific calculator, Data Booklet, ruler



Instructions
• Use black ink or ball-point pen.
• IfFillpencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• centre number
in the boxes at the top of this page with your name,
and candidate number.
• Answer all questions.
• Answer the questions in the spaces provided
– there may be more space than you need.

Information
• The total mark for this paper is 120.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• toForstructure
the question marked with an asterisk (*), marks will be awarded for your ability
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.
• your answers if you have time at the end.
Check
Turn over


P74455A
©2024 Pearson Education Ltd.
F:1/1/1/1/1/
*P74455A0132*

, Answer ALL questions.

Write your answers in the spaces provided.

1 Relative isotopic mass is an important concept in chemistry.
(a) Define relative isotopic mass.
(2)

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(b) A sample of hydrogen gas is formed from atoms of three isotopes, 1H, 2H and 3H.
Deduce the number of peaks due to molecular ions, H2+, in the mass spectrum of
this sample.
(1)

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(Total for Question 1 = 3 marks)




2
*P74455A0232* 

, 2 This question is about the intermolecular forces in organic compounds.
The structures of four isomeric alkanes are shown.




compound A compound B compound C compound D

The only significant intermolecular forces between molecules of these compounds
are London forces.

(a) Explain how London forces arise.
(3)

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(b) Explain which of the compounds A–D will have the highest boiling temperature.
(2)

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 *P74455A0332* Turn over

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