SAFE WORK PROCEDURE
LOCATION
VMC
WRITTEN BY: APPROVED BY:
Science Team
Determination of the Order of
a Simple Reaction
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DATE CREATED
WS&H
LAST REVISION
June 27, 2014
New
PERSONAL PROTECTION EQUIPMENT (PPE)
Safety glasses or face shield must be worn at all
times in work areas.
Long and loose hair must be tied back
Appropriate footwear must be worn. Shoe must
be fully enclosed. No open toed shoes.
Close fitting/protective clothing must be worn.
Remove strings hanging from pullovers/sweaters.
Rings and jewelry (long necklaces / bracelets,
etc.) must not be worn.
HAZARDS PRESENT
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Chemical burns
Absorption of Chemicals.
Inhalation of Chemicals.
Ingestion of Chemicals.
Slips / trips & falls
Chemical hazards
ADDITIONAL
REQUIREMENTS
APPARATUS / MATERIALS
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Magnesium ribbon
Steel wool
Scissors
HCl
Distilled water
Beakers
Stirring rod
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Equipment orientation
WHMIS training
SAFE WORK PROCEDURE
1. Don all personal protective equipment including: safety glasses, & protective nitrile gloves
(where required). Ensure all loose clothing is either removed or tied back. Remove any jewelry
and tie back long hair.
2. Obtain a piece of magnesium ribbon (28 cm) and clean it by rubbing it with steal wool to
remove any oxide formed on the surface.
3. Cut the ribbon into 7 equal pieces, each 4 cm.
4. Make seven 50 ml solutions of HCl with a different concentration: 0.5 M, 1.0 M, 1.5 M, 2.0 M,
2.5 M, 3.0 M, and 3.5 M.
5. Do your dilutions measuring accurately with a transfer pipette.
6. Place the required amount of stock solution in a small beaker and then add the required
amount of water to reach 50 ml.
7. Mix your solutions, and label your beakers 1-7.
8. Drop a piece of magnesium into beaker one acid solution and time how long it takes for the
magnesium to disappear. Stir gently.
SAFE WORK PROCEDURE
9. Repeat with the other six solutions.
10. Record your results.
11. Clean up your workstation and wash your hands thoroughly.
REGULATORY REQUIREMENTS
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WS&H Act W210, Section 4, 5
Mb. Regulations 217/2006,
Part 16, (Machines / Tools & Robots) Sections 16.1-16.18)
Part 35, (WHMIS Application)
Part 36, (Chemical & Biological Substances Application)
Determination of the Order of
a Simple Reaction
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