E10 Flashcards
Cabonate + DHCl
Effervescence
Carbonate + Cal. Chlor.
White ppt
Calcium carbonate soluble in?
Mineral and carbonic acid
Carbonate + SNS + Exc. Rgt.
White ppt -> Yellow/Brown
Silver carbonate soluble in?
Nitric and NH3 sol
Sulfite + DHCl
Sulfur Dioxide
Sulfite + Bar.Chlor.
White ppt.
Barium sulfite soluble in?
Dil. HCl
Sulfite + SNS + Exc. Rgt.
No change in color
White crystalline ppt.
Silver sulfite soluble in?
Excess dilute nitric acid & NH3
Sulfite + Potassium Perm.
Decolorization
Sulfite + Pot. Dich.
Green coloration
Sulfite + Lead Acetate / Nitrate
White ppt.
Lead sulfite soluble in?
Nitric acid
Thiosulfate + DHCl
No imm. change
Acidify -> turbidity
Thiosulfate + Bar. Chlor.
White ppt
Thiosulfate + SNS + After Standing
White ppt
Turns dark
Thiosulfate + Lead Ace. / Nitrate + Exc. Rgt.
No change
White ppt
Lead thiosulfate soluble in?
Excess thiosulfate
Thiosulfate + Pot. Cyan.
NaOH + KCN + boil -> thiocyanate ions form
HCl + Ferric Chloride -> Red color
Nitrites + Dil. Hcl
Pale blue liquid, evol. brown fumes
Nitrite + Bar. Chlor.
No ppt
Nitrite + SNS
White crystalline ppt
Nitrite + Pot. Iodide
Blue color
Thiocyanate + Conc. Sulfuric Acid
Yellow coloration
(Turns violet when warmed test sol.)
Thiocyanate + SNS
White curdy ppt
Silver thiocyanate in ammonia
soluble
Silver thiocyanate in dilute nitric acid
insoluble
Boil silver thiocyanate with HCl
Ppt turns into silver chloride
Thiocyanate + Copper Sulfate
Green coloration, then black ppt
Addition of acid to copper thiocyanate changes black ppt to?
White ppt
Thiocyanate + Merc. Nitrate
White ppt
Merc. thiocyanate soluble in?
Excess thiocyanate
Merc. thiocyanate, when heated?
Swells and forms Pharaoh’s serpent
Thiocyanate + Ferric chloride
Blood-red coloration
Hypochlorite + Dil. HCl
Yellow, later effervescence occurs and chlorine is evolved
Hypochlorite + Pot. Iodide
Bluish black color
Hypochlorite + Lead Acetate / Nitrate
Brown lead dioxide produced upon boiling
Hypochlorite + Cobalt Nitrate
Black ppt of Cobalt Hydroxide