LS4002 Prac 1 Booklet
LS4002 THE CHEMICAL FOUNDATIONS OF LIFE
Practical 1
Aim
To introduce students to the basic skills needed for the accurate chemical analysis.
Essential Requirements
All students should acquire appropriate eye protection (safety glasses) and a laboratory coat. Failure to do so will result in being refused entry to the laboratory.
The COSHH assessments should be read carefully and any hazards associated with the experiments should be noted and responded to as appropriate.
The experiment will take up to the full 2 hours timetabled. Hence it is important that you are punctual for the class especially as information is often given out orally at the start.
It is unlikely that any student turning up after the class has commenced will be admitted to the laboratory.
Normally students will work in pairs. If you are unable to find a partner the tutor will allocate you one or allow you to work on the experiment alone.
Assessment
The practical work accounts for 10% of the module mark.
Practical 1 will be assessed by an online submission of results and answers to questions through StudySpace. Students are encouraged to keep detailed notes of the results obtained from the experiment.
Deadlines
Each experiment has a two week period after the lab session during which time the results may be submitted.
Groups
Expt 1 lab
Expt 1 submission deadline 5pm on:
A-E
8th Oct
22nd Oct
F-J
15th Oct
29th Oct
I-L
22nd Oct
5th Nov
M-Q
29th Oct
12th Nov
LS4002 - EXPERIMENT 1
Quantitative Analysis by Acid-Base Titration - A Determination of the Quantity of Aspirin in Powdered Tablets
Aims
In this experiment a solution of sodium hydroxide will be standardised using potassium hydrogen pthalate. This standardised sodium hydroxide solution will then be used to titrate powdered aspirin tablets. The percentage of aspirin in the powder tablets will then be calculated.
Introduction
Acid-base titrations are an example of what is called volumetric analysis. As the
Practical 1
Aim
To introduce students to the basic skills needed for the accurate chemical analysis.
Essential Requirements
All students should acquire appropriate eye protection (safety glasses) and a laboratory coat. Failure to do so will result in being refused entry to the laboratory.
The COSHH assessments should be read carefully and any hazards associated with the experiments should be noted and responded to as appropriate.
The experiment will take up to the full 2 hours timetabled. Hence it is important that you are punctual for the class especially as information is often given out orally at the start.
It is unlikely that any student turning up after the class has commenced will be admitted to the laboratory.
Normally students will work in pairs. If you are unable to find a partner the tutor will allocate you one or allow you to work on the experiment alone.
Assessment
The practical work accounts for 10% of the module mark.
Practical 1 will be assessed by an online submission of results and answers to questions through StudySpace. Students are encouraged to keep detailed notes of the results obtained from the experiment.
Deadlines
Each experiment has a two week period after the lab session during which time the results may be submitted.
Groups
Expt 1 lab
Expt 1 submission deadline 5pm on:
A-E
8th Oct
22nd Oct
F-J
15th Oct
29th Oct
I-L
22nd Oct
5th Nov
M-Q
29th Oct
12th Nov
LS4002 - EXPERIMENT 1
Quantitative Analysis by Acid-Base Titration - A Determination of the Quantity of Aspirin in Powdered Tablets
Aims
In this experiment a solution of sodium hydroxide will be standardised using potassium hydrogen pthalate. This standardised sodium hydroxide solution will then be used to titrate powdered aspirin tablets. The percentage of aspirin in the powder tablets will then be calculated.
Introduction
Acid-base titrations are an example of what is called volumetric analysis. As the