BASIC LAB TECHNIQUES Flashcards
1
Q
The laboratory apparatus for carrying out reactions, in general, is made up of glass.
Why glass?
A
Because glass is resistant to the action of most of the chemicals
2
Q
which is made by heating soda, limestone and silica, softens readily at about 300-400°C in the burner flame.
A
soda-lime glass
3
Q
does not soften below 700-800°C and requires oxygennatural gas flame for working.
A
borosilicate glass
4
Q
measure volume of a liquid at a certain temperature
A
Volumetric flasks & cylinders
5
Q
are calibrated to deliver certain specific volume of a liquid at a specified temperature. The capacity mark is usually etched on the glass of the equipment.
A
Pipettes and burettes
