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BTEC LEVEL 3 ASSIGNMENTS
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Unit 19 Assignment A
P2: Describe the composition of the matrices analyzed
Introduction
Matrix could have been analyzed and is a components mixture. For instance,
something that consists of more than one metal, is alloys. These are two or
more metallic elements that have been mixed together.
Iron tablets, bottled water and brass are the matrices that we will use.
Iron tablets and their composition
Iron tablets contain sucrose, sodium lauryl sulfate, povidone, kaolin, stearic
acid, glucose, magnesium stearate, titanium dioxide, starch and opaglos.
Brass and its composition
Alloys contain a non-metal element or metal composed with a metallic base.
Bicarbonate in bottled water and its composition
Between tap water and bottled water, the most important difference is that
tap water has to be disinfected, tested for multiple viruses and filtered to
remove pathogens but bottled water doesn't have to be.
Some examples of typical values in branded bottled water are flavor, high
quality, and it is convenient.
To find out how much sodium bicarbonate is in a bottle of water, here is a
simple method:
Firstly, standardize the hydrochloric acid.
Then dilute this acid.
Using the diluted hydrochloric acid, titrate the bottle of water.
P1: Demonstrate accurately the amount of analyte in matrices
Experiment 1 part 1: Iron tablet analysis
Standardization of KMnO4
1
,Aim: To standardize potassium permanganate so we can use it in finding out
how much iron is in an iron tablet
Risk Assessment for KMnO4
If you do not handle potassium permanganate properly then it can cause
multiple health and safety risks/hazards, since it is a very strong agent for
oxidizing. Some examples of the risks/hazards are:
Fire hazard – if it comes into contact with materials which are flammable it
can react extremely violently. Flammable materials include organic
compounds like phosphorus and sulfur.
Inhalation hazard – if it is inhaled it can cause symptoms like chest pain,
shortness of breath, coughing and other respiratory issues. Lungs can
become damaged by inhaling or ingesting this chemical.
Environmental hazard – if this was to be let into the waterways it can be
toxic for aquatic life and cause damage to the environment.
Eye damage – if the eye and this chemical were to meet, extremely bad
irritation to the eye can be caused, it can damage your eyes. Even by
inhaling and ingesting this chemical it can damage your eyes.
It is crucial to lessen the chance of these risks and hazards, this can be done
by following legit health and safety methods like wearing protective clothing
such as gloves, goggles, apron, making sure the room or area is well-
ventilated. All flammable materials and stuff that does not go well along with
this chemical should be kept far away from it, this chemical should be stored
in a dry and cool place as well. You should throw away and clean up any
spills of this chemical as soon as possible and properly.
Risk assessment for oxalic acid
If you do not handle oxalic acid properly then it can cause multiple health
and safety risks/hazards. Some examples of the risks/hazards are:
Fire hazard – if it comes into contact with materials which are flammable it
can react extremely violently. Flammable materials include organic
compounds like phosphorus and sulfur.
Inhalation hazard – if it is inhaled it can cause symptoms like chest pain,
shortness of breath, coughing and other respiratory issues. Lungs can
become damaged by inhaling or ingesting this chemical.
2
, Environmental hazard – if this was to be let into the waterways it can be
toxic for aquatic life and cause damage to the environment.
Eye damage – if the eye and this chemical were to meet, extremely bad
irritation to the eye can be caused, it can damage your eyes. Even by
inhaling and ingesting this chemical it can damage your eyes.
Ingestion hazard – symptoms like vomiting, diarrhea, abdominal pain, and
nausea can ocur if this chemical was to be ingested. Large digestion of this
can even cause death and damage to your kidney.
It is crucial to lessen the chance of these risks and hazards, this can be done
by following legit health and safety methods like wearing protective clothing
such as gloves, goggles, apron, making sure the room or area is well-
ventilated. All flammable materials and stuff that does not go well along with
this chemical should be kept far away from it, this chemical should be stored
in a dry and cool place as well. You should throw away and clean up any
spills of this chemical as soon as possible and properly.
Equipment needed:
Burette
Distilled water
Pipette
Funnel
Hot plate – this was skipped and not used in our experiment
250ml conical flask
250ml beaker
Potassium permanganate solution
Standard solution of oxalic acid (0.1M)
Sulfuric acid
Method:
1. Use distilled water to clean the burette, then empty this out, use
potassium permanganate solution to rinse the burette, then empty this
out too.
2. Note down the starting point after you use potassium permanganate
solution to fill up your burette. The top of the meniscus is where you
should read it from.
3. Add 5ml of dilute sulfuric acid after adding 10ml of oxalic acid into a
clean conical flask by using a pipette. To fasten the reaction between
the potassium permanganate and the oxalic acid, use of a hot plate,
3
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