SKILL ASSESSED: OBSERVATION, RECORDING AND REPORTING
CRITERIA
Aim clearly stated
All apparatus and materials listed
All steps of procedure in past tense,3rd person, passive
All steps of procedure numbered
All sections included in report
Results enclosed in a neat table
Table headings appropriate
Table has title
Table headings accompanied by appropriate units.
MARKS
MAXIMUM
AWARDED
MARK
1
1
3
1
1
1
3
1
3
TOTAL
15
SKILL ASSESSED: ANALYSIS AND INTERPRETATION
CRITERIA
MARKS
MAXIMUM
AWARDED
MARK
Determining the final volume of acid used
Balanced chemical equation including states
Indicating the mole ratios of reactants
Converting no. of moles in cm3 to moles in dm3
Determining the no. of moles of HCl
Determining the final concentration of HCl
Stating a precaution /a possible source of error
Conclusion stated which is based on results and related to the aim
TOTAL
1
3
1
2
2
2
1
2
15
SKILL ASSESSED: MANIPULATION AND MEASUREMENT
CRITERIA
MARKS
MAXIMUM
AWARDED
MARK
2
1
1
1
1
2
1
1
1
2
Rinsing pipette and burette with appropriate solution before use
Filling pipette up to the required mark
Burette clamped vertically
Filling burette without overflowing
No air bubbles or hanging drops
Reading burette accurately
Reading burette at eye level
Reading taken from the bottom of the meniscus
Burette tap held properly
Touching tip of burette and pipette to side of container to complete
draining
Solution ran quickly, then slowly then dropwise
Conical flask rinsed with distilled water
Conical flask swirled by neck
3
1
1
TOTAL