AQA A-Level Chemistry – Practical Faculty of Science & Technology
Department of Chemistry
FINAL EXAMINATION – ADVANCED CHEMISTRY
(Organic, Inorganic & Physical Chemistry Integration)
Course Code: CHEM 401
Programme; Bachelor of Science (BSc)
Academic Year: 2025/2026
Semester: II
Date: __________________________
Time: __________________________
Duration: ______________________
Total Marks: 100
EXAMINATION INSTRUCTIONS
This paper consists of Section A, B, and C.
Answer ALL questions in Section A and ANY TWO from Sections B and C.
All answers must be written clearly in the answer booklet provided.
Show full calculations and include appropriate units and chemical equations.
Use of a non-programmable scientific calculator is allowed.
Periodic tables and data sheets are provided where necessary.
Any form of examination malpractice will lead to immediate disqualification.
CANDIDATE DETAILS
Full Name: ____________________________________________
Registration Number: __________________________________
,Signature: ____________________________________________
FOR EXAMINER’S USE ONLY
Section Marks Allocated Marks Scored
A 30
B 35
C 35
Total 100
(1) Outline how to prepare a Standard Solution in a Volumetric Flask (for an acid-base titration).
1. All apparatus rinsed with distilled water.
2. Solute weighed out accurately, on a weighing boat, using a balance accurate to 2 dp.
3. Solid placed in beaker and dissolved in about 100cm3 of water.
4. Weighing boat rinsed with a small quantity of water and washings added to beaker - or,
weighing boat should be reweighed and the difference calculated.
5. Solution transferred to a 250cm3 volumetric flask.
, 6. Beaker rinsed with distilled water and washings added to volumetric flask.
7. Distilled water added to volumetric flask until made up to graduation mark - bottom of
meniscus should rest on the mark.
- If mark overshot, solution is more dilute than expected => start again.
8. Volumetric flask then inverted 20 times to ensure thorough mixing.
(1) Outline how to carry out an acid-base titration.
1. All apparatus rinsed with distilled water and then with the relevant solution.
2. Using a pipette and pipette filler, pipette 25cm3 of NaOH into a conical flask. Touch surface of
solution with tip of pipette to ensure correct quantity is transferred.
3. Using a funnel, fill burette with acid and then remove funnel
- otherwise, some drops may fall through the titration after the initial reading has been taken =>
lower volume recorded than used.
4. Allow a small quantity of the acid to flow through the burette to ensure jet space is filled.
Note initial reading on burette.
- If jet space not filled, titre value higher than volume actually added.
Department of Chemistry
FINAL EXAMINATION – ADVANCED CHEMISTRY
(Organic, Inorganic & Physical Chemistry Integration)
Course Code: CHEM 401
Programme; Bachelor of Science (BSc)
Academic Year: 2025/2026
Semester: II
Date: __________________________
Time: __________________________
Duration: ______________________
Total Marks: 100
EXAMINATION INSTRUCTIONS
This paper consists of Section A, B, and C.
Answer ALL questions in Section A and ANY TWO from Sections B and C.
All answers must be written clearly in the answer booklet provided.
Show full calculations and include appropriate units and chemical equations.
Use of a non-programmable scientific calculator is allowed.
Periodic tables and data sheets are provided where necessary.
Any form of examination malpractice will lead to immediate disqualification.
CANDIDATE DETAILS
Full Name: ____________________________________________
Registration Number: __________________________________
,Signature: ____________________________________________
FOR EXAMINER’S USE ONLY
Section Marks Allocated Marks Scored
A 30
B 35
C 35
Total 100
(1) Outline how to prepare a Standard Solution in a Volumetric Flask (for an acid-base titration).
1. All apparatus rinsed with distilled water.
2. Solute weighed out accurately, on a weighing boat, using a balance accurate to 2 dp.
3. Solid placed in beaker and dissolved in about 100cm3 of water.
4. Weighing boat rinsed with a small quantity of water and washings added to beaker - or,
weighing boat should be reweighed and the difference calculated.
5. Solution transferred to a 250cm3 volumetric flask.
, 6. Beaker rinsed with distilled water and washings added to volumetric flask.
7. Distilled water added to volumetric flask until made up to graduation mark - bottom of
meniscus should rest on the mark.
- If mark overshot, solution is more dilute than expected => start again.
8. Volumetric flask then inverted 20 times to ensure thorough mixing.
(1) Outline how to carry out an acid-base titration.
1. All apparatus rinsed with distilled water and then with the relevant solution.
2. Using a pipette and pipette filler, pipette 25cm3 of NaOH into a conical flask. Touch surface of
solution with tip of pipette to ensure correct quantity is transferred.
3. Using a funnel, fill burette with acid and then remove funnel
- otherwise, some drops may fall through the titration after the initial reading has been taken =>
lower volume recorded than used.
4. Allow a small quantity of the acid to flow through the burette to ensure jet space is filled.
Note initial reading on burette.
- If jet space not filled, titre value higher than volume actually added.
