Preparation of Precipitated sulfur Flashcards
1
Q
Equation for sulfur
A
*Look at notes
2
Q
Sulfur: Color
A
Pale Yellow
3
Q
Sulfur: Odor
A
Odorless
4
Q
Sulfur: Form
A
Very fine amorphous powder
5
Q
Sulfur: Results of litmus paper
A
blue to blue, red to red
6
Q
Sulfur: Conclusion
A
neither acidic nor basic (neutral)
7
Q
Sulfur Test of purity: + K2C2O4 (no ppt)
A
absence of Ca+2
8
Q
Sulfur Test of purity: + AgNO3 (no ppt)
A
absence of Cl
9
Q
Sulfur Test of purity: Result
A
Dissolves readily
10
Q
Sulfur: conclusion
A
absence of sulfur
11
Q
addition of water to lime (CaO) with the liberation of heat
A
Slaking
12
Q
Sulfur: kinds of preparation
A
Liquids mixture because particles since it is lighter and easily suspended
13
Q
Lime
A
CaO
14
Q
lime water
A
Ca(OH)2 solution
15
Q
Slaked lime
A
Ca(OH)2
