Type: Individual
| Tools & Equipment | Materials |
|---|---|
| Analytical balance | Sodium chloride |
| Beakers (100ml, 250ml) | Ethanol 70% |
| Measuring cylinders (50ml, 100ml) | Distilled water |
| Glass stirring rods | Waste disposal container |
| Spatulas | |
| Safety goggles | |
| Laboratory gloves | |
| Lab coat | |
| Labels | |
| Permanent marker pens |
| S/N | Item | Quantity |
|---|---|---|
| 1 | Analytical balance | 1 Pc per Candidate |
| 2 | Beakers (100ml, 250ml) | 2 Pcs per Candidate |
| 3 | Measuring cylinders (50ml, 100ml) | 2 Pcs per Candidate |
| 4 | Glass stirring rods | 1 Pc per Candidate |
| 5 | Spatulas | 1 Pc per Candidate |
| 6 | Chemical bottles (Sodium chloride, Ethanol 70%, Distilled water) | 1 Set per Candidate |
| 7 | Safety goggles | 1 Pair per Candidate |
| 8 | Laboratory gloves (nitrile) | 1 Pair per Candidate |
| 9 | Lab coat | 1 Pc per Candidate |
| 10 | Waste disposal container for chemical residues | 1 Pc per Candidate |
| 11 | Labels and permanent marker pens | 1 Set per Candidate |
| Items to be Evaluated | Marks Available | Marks Obtained | Comments |
|---|---|---|---|
| TASK 1: Preparation and Use of PPE | |||
| Wears lab coat correctly (Award 1 mark for correct use or 0) | 1 | ||
| Wears safety goggles properly (Award 1 mark for correct use or 0) | 1 | ||
| Wears laboratory gloves correctly (Award 1 mark for correct use or 0) | 1 | ||
| Sub-Total | 3 | ||
| TASK 2: Measurement of Sodium Chloride | |||
| Zeroes the analytical balance before weighing (Award 2 marks if done correctly, 0 if not) | 2 | ||
| Uses spatula to transfer Sodium chloride without spillage (Award 1 mark for correct technique or 0) | 1 | ||
| Measures exactly 25.0 g of Sodium chloride (Award 3 marks for 25.0 ± 0.1 g, 0 otherwise) | 3 | ||
| Sub-Total | 6 | ||
| TASK 3: Measurement of Ethanol 70% | |||
| Selects appropriate measuring cylinder (100 ml) (Award 1 mark for correct cylinder or 0) | 1 | ||
| Measures 100 ml of Ethanol 70% at eye level to avoid parallax error (Award 3 marks for 100 ± 2 ml, 0 otherwise) | 3 | ||
| Pours Ethanol carefully to avoid spillage (Award 1 mark for careful pouring or 0) | 1 | ||
| Sub-Total | 5 | ||
| TASK 4: Measurement of Distilled Water | |||
| Selects appropriate measuring cylinder (250 ml or 100 ml twice) (Award 1 mark for correct choice or 0) | 1 | ||
| Measures 150 ml of Distilled water accurately at eye level (Award 3 marks for 150 ± 2 ml, 0 otherwise) | 3 | ||
| Pours distilled water carefully to avoid spillage (Award 1 mark for careful pouring or 0) | 1 | ||
| Sub-Total | 5 | ||
| TASK 5: Safe Dispensing and Labelling | |||
| Dispenses each chemical into separate labeled containers (Award 2 marks if all three are labeled correctly, 0 otherwise) | 2 | ||
| Disposes of chemical residues correctly in waste container (Award 2 marks for correct disposal method, 0 otherwise) | 2 | ||
| Cleans workspace after dispensing (Award 1 mark for neat and clean workspace or 0) | 1 | ||
| Sub-Total | 5 | ||
| PRODUCT CHECKLIST | |||
| Sodium chloride weighed to 25.0 ± 0.1 g (Award 3 marks for correct mass or 0) | 3 | ||
| Ethanol 70% volume measured to 100 ± 2 ml (Award 3 marks for correct volume or 0) | 3 | ||
| Distilled water volume measured to 150 ± 2 ml (Award 3 marks for correct volume or 0) | 3 | ||
| All containers correctly labeled with chemical name and quantity (Award 3 marks for all labels correct or 0) | 3 | ||
| No spillage or contamination evident on final workspace (Award 3 marks for clean and safe workspace or 0) | 3 | ||
| Sub-Total | 15 | ||
| GRAND TOTAL | 39 | ||
Type: Individual
| Tools & Equipment | Materials |
|---|---|
| Analytical balance | Distilled water |
| Volumetric flasks (1000 ml) | Sodium chloride (NaCl) solid |
| Beakers (250 ml) | Hydrochloric acid (HCl) concentrated solution |
| Glass stirring rods | Protective gloves |
| Measuring cylinders (100 ml) | Lab coat |
| Funnel | Safety goggles |
| Wash bottle (distilled water) | |
| Labeling tape and marker pen |
| S/N | Item | Quantity |
|---|---|---|
| 1 | Analytical balance | 1 Pc per 2 Candidates |
| 2 | Volumetric flasks (1000 ml) | 1 Pc per Candidate |
| 3 | Beakers (250 ml) | 1 Pc per Candidate |
| 4 | Glass stirring rods | 1 Pc per Candidate |
| 5 | Measuring cylinders (100 ml) | 1 Pc per Candidate |
| 6 | Distilled water | 1 L per Candidate |
| 7 | Sodium chloride (NaCl) solid | 10 g per Candidate |
| 8 | Hydrochloric acid (HCl) concentrated solution | 100 ml per Candidate |
| 9 | Protective gloves | 1 Pair per Candidate |
| 10 | Lab coat | 1 Pc per Candidate |
| 11 | Safety goggles | 1 Pc per Candidate |
| 12 | Funnel | 1 Pc per Candidate |
| 13 | Wash bottle (distilled water) | 1 Pc per Candidate |
| 14 | Labeling tape and marker pen | 1 Set per Candidate |
| Items to be Evaluated | Marks Available | Marks Obtained | Comments |
|---|---|---|---|
| TASK 1: Personal Protective Equipment and Setup | |||
| Candidate wears lab coat, gloves, and safety goggles before handling chemicals (Award 2 marks if all PPE worn correctly, else 0) | 2 | ||
| Candidate cleans and arranges workspace before starting (Award 1 mark for tidy and organized workspace) | 1 | ||
| Candidate verifies chemical labels and quantities before use (Award 1 mark for correct verification) | 1 | ||
| Candidate uses analytical balance correctly to weigh NaCl (Award 3 marks for correct tare, weighing 29.22 g ±0.02 g for 0.5 M in 1000 ml) | 3 | ||
| Candidate measures volumes of liquids accurately using measuring cylinder (Award 2 marks for measuring 27.2 ml ±0.1 ml HCl for 0.1 M in 500 ml) | 2 | ||
| Candidate dilutes and dissolves chemicals properly in volumetric flasks (Award 3 marks for correct dissolution and volume to mark) | 3 | ||
| Candidate labels prepared solutions with name, concentration, date, and initials (Award 2 marks for clear, correct labeling) | 2 | ||
| Candidate disposes of waste and cleans equipment after preparation (Award 1 mark for proper cleanup) | 1 | ||
| Sub-Total | 15 | ||
| PRODUCT CHECKLIST | |||
| Prepared 1000 ml 0.5 M NaCl solution with correct concentration and volume (Award 5 marks if volume is exactly 1000 ml and concentration within ±2%) | 5 | ||
| Prepared 500 ml 0.1 M HCl solution with correct concentration and volume (Award 5 marks if volume is exactly 500 ml and concentration within ±2%) | 5 | ||
| Solutions are clear, homogenous, and properly labeled (Award 3 marks for clarity and correct labeling) | 3 | ||
| Volumetric flasks are clean and free from contamination (Award 2 marks for cleanliness and no residues) | 2 | ||
| Sub-Total | 15 | ||
| GRAND TOTAL | 30 | ||