TEACHING LABORATORY
Chemical Reactions
VIRTUAL CHEMLAB
PERFORMANCE LABORATORY
The Laboratory
Challenge
The MCQ Challenge
ChemQuest
  VIRTUAL CHEMLAB
 


Preliminary Lab Manual

I. Colour and Texture of Unknown Solids

Colour & Texture of Solid
Inference

Bright orange powder
Dilead(II) lead(IV) oxide, Pb3O4

Green powder
CuCO3

Reddish brown solid or powder

Cu2O, copper(I) oxide (reddish brown) as shown.

Iron(III) oxide, Fe2O3, Fe(OH)3

PbO2 (dark brown)

Black powder
CuO, FeO, MnO2, carbon powder

 

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