What is demineralized or ultrapure water?
Water with dissolved minerals and ions removed, supplied in 5L or 10L containers.
How is distilled water obtained?
By boiling followed by condensation removing most minerals, impurities, and microorganisms.
What laboratory attire is strongly discouraged during chemistry practicals?
Contact lenses are strongly discouraged.
Which activities are prohibited in the practical workroom?
Eating, drinking, smoking, using a phone, and mouth pipetting are prohibited.
Distilled water: process label
Boiling then condensation removes impurities
Solute: lab term
Dissolved substance in solution
Solvent: role
Dilutes or extracts substances without changing
Fume hood: purpose
Ventilates and protects from chemical fumes
Ultrapure water: supply
Removes dissolved minerals, supplied in 5L/10L
Lab coat safety requirement
Fastened cotton lab coat essential
Prohibited in lab
Eating, drinking, mouth pipetting, smoking
Post-session cleaning
Clean equipment and dispose waste properly
Preparation: bench condition
Benches and hoods must be clear and unlocked
Glassware purpose: volumetric flask
Precise measurement of liquids
Answer 11 questions on Laboratory Techniques and Safety.
1. What role does a solvent play in a solution?
2. Which combination represents appropriate laboratory attire for a chemistry practical?
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