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AQA A-LEVEL CHEMISTRY PAPER 1 INORGANIC AND PHYSICAL CHEMISTRY

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AQA A-LEVEL CHEMISTRY PAPER 1 INORGANIC AND PHYSICAL CHEMISTRY AQA A-LEVEL CHEMISTRY PAPER 1 INORGANIC AND PHYSICAL CHEMISTRY A-level CHEMISTRY Paper 1 Inorganic and Physical Chemistry Tuesday 13 June 2017 Afternoon Time allowed: 2 hours Materials For this paper you ...

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  • May 30, 2022
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AQA A-LEVEL CHEMISTRY PAPER 1 INORGANIC AND PHYSICAL
CHEMISTRY




Please write clearly in block capitals.


Centre Candidate
number number

Surname

Forename(s)

Candidate ure



A-level
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry


Tuesday 13 June 2017 Afternoon Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
 the Periodic Table/Data Booklet, provided as an insert (enclosed) Questio Mark
 a ruler with millimetre measurements n
 a calculator, which you are expected to use where appropriate. 1
2
Instructions
 Use black ink or black ball-point pen. 3
 Fill in the boxes at the top of the page. 4
 Answer all questions. 5
 You must answer the questions in the spaces provided.
6
Do not write outside the box around each page or on blank pages.
 All working must be shown. 7
 Do all rough work in this book. Cross through any work 8
you do not want to be marked. 9
10
Information
 The marks for questions are shown in brackets. 11
TOTAL
*jun177405101* 7405/1
IB/M/Jun17/
E8

, The maximum mark for this paper is 105.




*jun177405101* 7405/1
IB/M/Jun17/
E8

, Do not
2 write
outside the
box

Answer all questions in the spaces provided


0 1 This question is about silver iodide.

0 1 . 1 Define the term enthalpy of lattice formation.
[2 marks]




0 1 . 2 Some enthalpy change data are shown in Table 1.

Table 1

Enthalpy change
/ kJ mol−1

AgI(s)  Ag+(aq) + I– +112
(aq)
Ag+(g)  Ag+(aq) 464

I–(g)  I–(aq) 293


Use the data in Table 1 to calculate the enthalpy of lattice
formation of silver iodide.
[2 marks]




Enthalpy of lattice formation kJ mol−1


*02
IB/M/
* Jun17/7405/1

, Do not
3 write
outside the
box

0 1 . 3 A calculation of the enthalpy of lattice formation of silver iodide based
on a
perfect ionic model gives a smaller numerical value than the value
calculated in Question 1.2

Explain this difference.
[2 marks]




0 1
. 4 Identify a reagent that could be used to indicate the presence of
iodide ions in an aqueous solution and describe the observation
made.
[2 marks]
Reagent

Observation




8


Turn over for the next question




Turn over ►
*03
IB/M/
* Jun17/7405/1

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