Final answer:
Calibrating a pipette is important for accurate and precise measurements in an experiment. It involves comparing the volume delivered by the pipette to a standard reference.
Step-by-step explanation:
Calibrating a pipette is important before beginning an experiment because it ensures accurate and precise measurements. Calibration is the process of adjusting the pipette to deliver the correct volume of liquid. This is done by comparing the volume delivered by the pipette with a standard reference, such as a graduated cylinder or a calibration device. If the pipette is not calibrated, it can lead to errors in the experiment's results and affect the overall accuracy of the findings.