ACTIVITY OF WET LABS MEASURING THE MASS & VOLUME OF OBJECTS AND SUBSTANCES
Pre-Laboratory Questions
What is a meniscus? Sketch a 10 mL graduated cylinder filled to a volume of 5.24 Ml.
How do we typically read the liquid level when dealing with a liquid that forms a meniscus? Describe how to read a volume using a graduated cylinder with graduation marks every 1 mL.
Why is a rubber safety bulb always used when working with a pipet?
Why are the calibration marks on laboratory beakers taken only to be an approximate guide to volume?
Precision volumetric glassware (pipets and burets) may be marked with the legend “TC” or “TD” along with a temperature. To what do each of these notations refer?
Why is a rubber safety bulb always used when working with a pipet? Why are the calibration marks on laboratory beakers taken only to be an approximate guide to volume?
