MEASURING LIQUIDS
Choosing the most
accurate measuring lab tool for a particular type of measurement is a decision that a chemist must make when selecting
equipment to perform an experiment.
1. OBJETIVES
-
Learning lab glassware in english
-
become familiar with the different pieces of
laboratory glassware
-
discuss about the laboratory glassware
accuracy
2. MATERIAL
- graduated cylinder 10 ml
- graduated cylinder 100 ml
- Volumetric flask 100 ml
- Pipette 10 ml
- Pipette 25 ml
- Burette 25 ml
- Beaker 100 ml
- Beaker 250 ml
- Dropper
- Pipette pump
- Water
3. EXPERIMENTAL PROCEDURE
-
Identify all this volumetric material and take pictures or draw in the
next boxes
pipette
|
burette
|
beaker
|
graduated cylinder
|
Volumetric flask
|
dropper
|
-
Choose the best option in each case:
a)
Measure approximately 250 ml of water
b)
Measure accurately 7 ml of water
c)
Measure 3 drops of water
d)
Measure accurately 100 ml of water
e)
Measure approximately 75 ml of water
f)
Measure accurately 25 ml of water
4. CONCLUSIONS
-
Which piece of laboratory glassware is the
most accurate?
-
Which piece of laboratory glassware is for taking approximate amounts of
liquids?
