Introduction Flashcards
1
Q
how to use a bunsen burner
A
- place bunsen burner on heat proof mat
- attach hose to gas tap. make sure gas tap is closed
- close air hole on bunsen burner
- light a match
- hold match above the barrel
- open gas tap for yellow flame
- open airhole for blue flame
2
Q
what is a bunsen burner
A
a bunsen burner is a piece of lab equipment for heating, combustion and chemical reations
3
Q
what is blue flame for
A
complete bustion and heating
4
Q
what is a yellow flame for
A
safety flame, incomplete combustion, heating with less energy than blue flame
5
Q
what is a mensicus
A
a curve seen at the top of the liquid
6
Q
how do we read a mensicus
A
we always read the bottom of the mensicus or the bottom of the curve
