Chemical Analysis - 4.6 Flashcards
1
Q
Test for Cl2
A
Damp blue litmus paper –> white
2
Q
Test for NH3
A
Damp red litmus paper –> blue
3
Q
How to conduct flame test?
A
Wire into acid
Wire into sample
Wire into flame
Observe flame colour
4
Q
Flame test: Li +
A
red
5
Q
Flame test: Na +
A
Yellow-orange
6
Q
Flame test: K+
A
Lilac
7
Q
Flame test: Ca 2+
A
Orange-red
8
Q
Flame test: Cu 2+
A
blue-green
9
Q
NaOH tests:
A
Fe(OH)2 - green
Fe(OH)3 - brown
Cu(OH)2 - blue
10
Q
How to conduct NaOH tests?
A
dissolve sample in water
add drops of NaOH
observe colour
