Exam (elaborations)

AS Chemistry Paper 2 – Organic and Physical Chemistry Predicted Paper 2023 with marking scheme attached.

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Module
AS Chemistry Paper 2 – Organic and Physical

Institution
AQA

AQA AS Chemistry Paper 2 – Organic and Physical Chemistry Predicted Paper 2023 with marking scheme attached. Name …………………………………………………………………… Date ………………… 1 hour 30 minutes allowed You should have access to the AQA insert...

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as chemistry paper 2 – organic and physical chemistry predicted paper 2023 with marking scheme attached

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As level chem ppr2 2023

AQA
AS Chemistry Paper 2 – Organic and Physical
Chemistry Predicted Paper 2023 with marking
scheme attached.

Name ……………………………………………………………………
Date …………………

1 hour 30 minutes allowed
You should have access to the AQA insert (periodic table and data sheet) to
help with answering the questions.
You should spend around 65 minutes on section A and 25 minutes on section
B.

Possible Marks
Question
marks gained
Grade boundaries
1 7
These are VERY rough guesses! Getting a C 2 5
on this paper does not guarantee you the 3 10
same mark in the exam. 4 6
5 15
6 8
7 8
 A – 80
8 6
 B – 70
Section B 15
 C – 60 Total 80
 D – 50
 E - 40

1

,As level chem ppr2 2023

2

,As level chem ppr2 2023

SECTION A
01 A chemist carries out an investigation on the equilibrium system
shown below.

2X(g) + Y(g) ⇌ 2Z(g)

This reaction can be carried out so that the position of the equilibrium
is completely on the right-hand side, at a temperature of 500°C and 2
atmosphere pressures in the presence of a V2O5 catalyst.

Then the chemist carries out this reaction at a temperature of 500°C
and 2 atmospheres pressure. He does not use the catalyst.

01.1 Predict the changes, if any to each of the following.

i. Position of the equilibrium.
[1 mark]

ii. Rate of the backward reaction.
[1 mark]

3

, As level chem ppr2 2023

01.2 The chemist mixes together 2.00 × 10-3 mol X(g) and 4.00 × 10-3
mol Y(g) in a 1.00 dm3 container.

At equilibrium, the mixture contains 3.00 × 10-4 mol of X(g).

Calculate the equilibrium constant Kc, including units, if any, for the
equilibrium. Give your answer to three significant figures.
[5 marks]

Kc =

Units =

4

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Exam (elaborations)

AS Chemistry Paper 2 – Organic and Physical Chemistry Predicted Paper 2023 with marking scheme attached.

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