ACTUAL JUNE 2024 PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY 9CHO/01 ADVANCED PAPER 1 MERGED QUESTION PAPER AND MARKING SCHEME 100% GUARANTEE

ACTUAL JUNE 2024 PEARSON EDEXCEL LEVEL 3 GCE CHEMISTRY 9CHO/01 ADVANCED PAPER 1 MERGED
QUESTION PAPER AND MARKING SCHEME 100% GUARANTEE
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Morning (Time: 1 hour 45 minutes) Paper


Chemistry ■ ■


Advanced
PAPER 1: Advanced Inorganic and Physical Chemistry




Instructions
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• centre
Fill in the boxesand
number at the top of this
candidate page with your name,
number.

•• Answer
Answer all
thequestions.
questions in the spaces provided
– there may be more space than you need.

Information

•• The total mark for this paper is 90.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• For the question marked with an asterisk (*), marks will be awarded for your 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 end. Turn over


P76895A
©2024 Pearson Education Ltd.
F:1/1/1/1/

, Answer ALL questions.

Some questions must be answered with a cross in a box . If you change your mind about an




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answer, put a line through the box and then mark your new answer with a cross .

1 This question is about atomic structure.
(a) Complete the table.
(3)


Species Number of protons Number of neutrons Number of electrons
32
S
33
S
34 2−
S


(b) A sample of sulfur was found to contain only four isotopes.




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(i) Complete the table to show the percentage abundance of 34S.
(1)

32 33 34 36
Isotope S S S S

Percentage
95.02 0.75 0.02
abundance


(ii) Calculate the relative atomic mass (Ar ) of the sulfur in this sample using the
data in the table. Give your answer to two decimal places.
(2)



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(Total for Question 1 = 6 marks)

2
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, 2 This question is about the formation of ions.

(a) Explain the trend in the values of the first electron affinities of the
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elements shown.
(4)


Element First electron affinity / kJ mol−1

chlorine −349

bromine −325

iodine −295


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(b) Which of these isoelectronic ions has the smallest ionic radius?
(1)
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A S2−
B Cl−

C K+

D Ca2+




3
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, (c) Some series of successive ionisation energies in kJ mol−1 are shown.
The letters do not refer to the symbols of the elements.




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Element Successive ionisation energies / kJ mol−1

A 578 1817 2745 11 578 14 831

B 653 1592 2987 4740 6686

C 738 1451 7733 10 541 13 629

D 1086 2353 4621 6223 37 832


(i) Which element in the table could be in Group 4?
(1)
A
B




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C

D


(ii) Which element in the table could be described as an s-block element?
(1)
A

B

C

D


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