Preparation of Precipitated sulfur

Question 1

Equation for sulfur

Answer 1

*Look at notes

Question 2

Sulfur: Color

Answer 2

Pale Yellow

Question 3

Sulfur: Odor

Answer 3

Odorless

Question 4

Sulfur: Form

Answer 4

Very fine amorphous powder

Question 5

Sulfur: Results of litmus paper

Answer 5

blue to blue, red to red

Question 6

Sulfur: Conclusion

Answer 6

neither acidic nor basic (neutral)

Question 7

Sulfur Test of purity: + K2C2O4 (no ppt)

Answer 7

absence of Ca+2

Question 8

Sulfur Test of purity: + AgNO3 (no ppt)

Answer 8

absence of Cl

Question 9

Sulfur Test of purity: Result

Answer 9

Dissolves readily

Question 10

Sulfur: conclusion

Answer 10

absence of sulfur

Question 11

addition of water to lime (CaO) with the liberation of heat

Answer 11

Slaking

Question 12

Sulfur: kinds of preparation

Answer 12

Liquids mixture because particles since it is lighter and easily suspended

Question 13

Lime

Answer 13

CaO

Question 14

lime water

Answer 14

Ca(OH)2 solution

Question 15

Slaked lime

Answer 15

Ca(OH)2

Question 16

Limestone

Answer 16

CaCO3

Question 17

Milk of lime

Answer 17

Ca(OH)2 suspension

Question 18

Other forms of sulfur (Official prep)

Answer 18

Sublimed sulfur, wash sulfur

Question 19

Allotropic forms of sulfur

Answer 19

Crystalline: Rhombic, monoclinic

Question 20

Other term for Rhombic

Answer 20

Octahedral sulfate

Question 21

Other term for Monoclinic

Answer 21

Prismatic sulfur plastic

Question 22

Uses of sulfur

Answer 22

Scabicide, cathartic, Aid in fumigation, Keratolytic (fungicidal action), treatment for seborrhea and burns