1. Volumetric Measurements

2. Volumetric measurements
Basic units of volumetric measurement is liter (abbreviation is letter L – upper or lower case)
1 mL = 1 cc
1 mL of water weighs 1 g 1 liter of water weighs 1 kg
Consider the purposes of common glassware:

3. Beakers: Mixing and dispensing
Wide mouth, good for stirring but hard to seal for storage
Lip, good for pouring
mL graduations, if present, are VERY approximate; neither accurate nor precise

4. Conical (Erlenmeyer) Flasks: Mixing and storing
Shape is good for swirling to mix solutions.
Narrow mouth is easy to seal for storage (using stopper or Parafilm).
Not as easy to pour things into or out of it, compared to a beaker.
Like a beaker, graduations are neither accurate nor precise.

5. Graduated cylinders: Measuring
Cylindrical shape gives good precision and accuracy.
Graduations can measure any volume within the size range of the cylinder.
Not an ideal shape for mixing, but it can be done. (More on this when we discuss making solutions.)

6. Smaller volumes: Pipettes
Glass/plastic pipettes
1 mL, 5 mL, 10 mL, 20 mL

7. Pipette