Step-by-Step Guide to Pipette Accurately

The skill to pipette solution accurately is critical for chemistry learners to obtain an accurate experimental result in any laboratory work and assessment. The ability to pipette is part of the requirement for the Cambridge Assessment International Education (CAIE) syllabus (9701). Paper 3 - Advanced Practical Skill sanctioned by CAIE regularly tests this skill. Thus, it is essential for chemistry learners to master this technique.

Most chemistry learners find it challenging to master the skill to pipette solution accurately. This guide provides a detailed step-by-step instruction, with high-resolution pictures, to aid laboratory instructor in teaching an accurate pipetting technique.

Instructor can give this as a hand-out to their learners to refer to while they demonstrate the technique. Learners can keep referring back to this guide while they are practicing to refine their pipetting technique after the demonstration. This guide uses 25-mL pipette as illustration, but the technique is applicable to different-size pipettes including the Mohr pipette.

Equipment needed to conduct the lesson:

1. 25-mL pipette (other size is applicable)
2. Pipette filler
3. 125-mL conical flask (other size is applicable)
4. 125-mL beaker (other size is applicable)

This guide contains:

1. Step-by-Step Guide to Pipette Accurately_highres.pdf
2. Step-by-Step Guide to Pipette Accurately_lowres.pdf