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Inorganic Chemistry Lab > Preparation of Precipitated sulfur > Flashcards

Preparation of Precipitated sulfur Flashcards

1
Q

Equation for sulfur

A

*Look at notes

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2
Q

Sulfur: Color

A

Pale Yellow

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3
Q

Sulfur: Odor

A

Odorless

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4
Q

Sulfur: Form

A

Very fine amorphous powder

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5
Q

Sulfur: Results of litmus paper

A

blue to blue, red to red

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6
Q

Sulfur: Conclusion

A

neither acidic nor basic (neutral)

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7
Q

Sulfur Test of purity: + K2C2O4 (no ppt)

A

absence of Ca+2

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8
Q

Sulfur Test of purity: + AgNO3 (no ppt)

A

absence of Cl

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9
Q

Sulfur Test of purity: Result

A

Dissolves readily

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10
Q

Sulfur: conclusion

A

absence of sulfur

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11
Q

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

A

Slaking

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12
Q

Sulfur: kinds of preparation

A

Liquids mixture because particles since it is lighter and easily suspended

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13
Q

Lime

A

CaO

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14
Q

lime water

A

Ca(OH)2 solution

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15
Q

Slaked lime

A

Ca(OH)2

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16
Q

Limestone

17
Q

Milk of lime

A

Ca(OH)2 suspension

18
Q

Other forms of sulfur (Official prep)

A

Sublimed sulfur, wash sulfur

19
Q

Allotropic forms of sulfur

A

Crystalline: Rhombic, monoclinic

20
Q

Other term for Rhombic

A

Octahedral sulfate

21
Q

Other term for Monoclinic

A

Prismatic sulfur plastic

22
Q

Uses of sulfur

A

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

Inorganic Chemistry Lab (16 decks)

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