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40 Cards in this Set
- Front
- Back
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negatively charged ions produced by the ionization of acids and salts. |
Anions |
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True or False? Anions are separated into groups based upon the solubilities of the calcium, barium, cadmium, and silver salts |
True |
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includes ions whose calcium salts are insoluble in slightly basic solution. |
GROUP 1 Anions |
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includes ions whose calcium salts are soluble but whose barium salts are insoluble in slightly basic solution. |
GROUP 2 Anions |
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is composed of anions whose calcium and barium salts are soluble but whose cadmium salts are insoluble in slightly basic solution. |
GROUP 3 Anions |
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is composed of anions whose calcium, barium, and cadmium salts aresoluble but whose silver salts are in soluble in solution slightly acid with nitric acid. |
GROUP 4 Anions |
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contains anions whose calcium, barium, cadmium, and silver salts are soluble in water and acids. |
GROUP 5 Anions |
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Carbonate ion Chemical Formula |
CO3-2 |
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Sulfite ion Chemical Formula |
SO3-2 |
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Arsenite ion Chemical Formula |
(AsO2-1) |
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Arsenate ion Chemical Formula |
AsO4-3 |
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Phosphate ion Chemical Formula |
PO4-3 |
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Oxalate ion Chemical Formula |
C2O4-2 |
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fluoride ion Chemical Formula |
F- |
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Reagent for detection of Carbonate Ions |
Dilute HCl and KClO3 |
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decomposes carbonate ion and forms carbon dioxide gas thus, the effervescence. |
Dilute HCl |
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Chemical Reaction for Carbonate |
CaCO3 + H3O <-> Ca2+ + CO2 + H2O |
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is the escape of gas from an aqueous solution and the foaming or fizzing that results from that release. |
Effervescence |
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will oxidize the sulfite, sulfide, and thiosulfate ions, an acid solution, to the sulfate ion or free sulfur |
KClO3 |
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Reagent that involves removal of heavy metals (common: Mercury, Lead, Chromium, Zinc and Copper) |
Sodium Carbonate Solution |
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The Precipitating Agent of Day 1 Procedure 3 |
Calcium Acetate |
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Reagent that dissolves all calcium salts except CaF2 and CaC2O4 (residue in third day analysis). |
Acetic Acid |
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Confirmatory Reagent for the Identification of Sulfite ions (SO3-2) |
Hydrogen Peroxide |
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Positive Indicator for the Identification of Sulfite ions (SO3-2) |
White Precipitate |
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Chemical reaction for sulfite ions |
H2SO3 +H2O2 + H2O -> SO4- + 2H3O+ SO4 + Ba+ -> + BaSO4 |
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Confirmatory Reagent for Identification of Arsenite ions (AsO2-) |
Thioacetamide |
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Positive Indicator for Identification of Arsenite ions (AsO2-1) |
Yellow Precipitate |
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Chemical Reaction for Arsenite ions |
2H3AsO3 + 3H2S -> As2S3 + 6H2O |
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Confirmatory Reagent for the Identification of Arsenate ions (AsO4-3 ) |
Potassium Iodide (KI) |
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Positive Indicator for the Identification of Arsenate ions (AsO4-3) |
Brown Precipitate |
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Chemical Reaction for Arsenate Ion |
H2AsO4- + 3H3O+ + 2I- <-> As2S6 + 10H2O |
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Confirmatory Reagent for the Identification of Phosphate ions (PO4-3) |
Ammonium Molybdate Solution ((NH4)6Mo7O24) |
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Positive Indicator for the Identification of Phosphate ions (PO4-3) |
Yellow Precipitate |
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Chemical Reaction for Phosphate ion |
H2PO4- + 12MoO4- + 22H3O+ + 3NH4+ <-> (NH4)3 PO4 + 12MoO3 + 34H2O |
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Confirmatory Reagent for the Confirmation of Oxalate ions (C2O4-2) |
Potassium Permanganate (KMnO4) |
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Positive Indicator for the Confirmation of Oxalate ions (C2O4-2) |
Dissapearance of Pink Color |
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Chemical Reaction of Oxalate Ion |
5H2C2O4 + 2MnO4- + 6H3O+ <-> 2Mn2+ + 10CO2 + 14H2O |
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Confirmatory Reagent for the Confirmation of Fluoride ions (F-) |
Sulfuric acid (H2SO4) |
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Positive Indicator for the Confirmation of Fluoride ions (F-) |
Etching (cut) |
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Chemical Reaction for Fluoride ions |
CaF2 + 2H3O+ -> Ca2+ + 2H2 + 2HF |
