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AP Chemistry Colors

Color Memorization List for AP Chem

QuestionAnswer
Lithium solution placed in a flame Deep red (crimson)
Sodium solution placed in a flame Yellow
Potassium solution placed in a flame Violet
Calcium solution placed in a flame Orange-Red
Strontium solution placed in a flame Red
Barium solution placed in a flame Yellow-green
Copper solution placed in a flame Blue-green
Cu 1+ in solution Green
Cu 2+ in solution Blue
Fe 2+ in solution Yellow-green (depending on the anion)
Fe 3+ in solution Orange-red (depending on the anion)
Cr 3+ in solution Violet (CrNO3)3 to Green (CrCl3)
Ni 2+ in solution Green
Mn 2+ in solution Pink
MnO4- in solution Purple
Pb 3+ in solution Blue-green
Pb 2+ in solution Colorless
Pb 4+ in solution Colorless
V 2+ in solution Violet
V 3+ in solution Blue-green
CrO4 2- in solution Yellow
Cr2O7 2- in solution Orange
Cu(NH3)4 2+ in solution Dark Blue
FeSCN 2+ in solution Red brown, red to dark orange
CoCl4 2- in solution Blue
Co 2+ in solution Pink
Ti(H2O)6 3+ in solution Purple
Al in solution Colorless
K in solution Colorless
Li in solution Colorless
Mg in solution Colorless
Na in solution Colorless
Ca in solution Colorless
Ba in solution Colorless
Sr in solution Colorless
Zn in solution Colorless
Al as a solid salt White
K as a solid salt White
Li as a solid salt White
Mg as a solid salt White
Na as a solid salt White
Ca as a solid salt White
Ba as a solid salt White
Sr as a solid salt White
Zn as a solid salt White
F2 (g) Pale yellow gas
Cl2 (g) Green- yellow gas
Br2 (l) Red-brown liquid
I2 (s) Dark metallic looking solid
I2 (g) Dark violet vapor
S8 Yellow odorous solid
NO Colorless gas
NO2 Brown gas
PbI2 Bright yellow precipitate
Metallic Sulfides Sulfides of transition metals tend to be black
Fe2O3 Reddish Brown (rust)
Phenolphtalein in an acidic solution Colorless
Phenolphatalein in a basic solution Pink
Red litmus paper in a basic solution Becomes purple-ish blue
Blue litmus paper in an acidic solution Becomes pink-ish red
Created by: Mr.Confrey