Ch_4-2_Solubility

Ch_4-2_Solubility - moderately soluble . 5. (b) Carbonates...

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COMMON ABBREVIATIONS (g) gas (s) solid (c) crystalline or (a) amorphous (aq) solvent water (ak) solvent alcohol (sat) saturated solution
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PRECIPITATION REACTIONS K 2 CrO 4 (aq) AgNO 3 (aq) Ag 2 CrO 4 (s)
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Precipitation (Insoluble Compound Formed) Pb(NO 3 ) 2 (aq) KI(aq) Modified from web
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E16 Solubility Rules (Qualitative) 1. Sodium, ammonium, and potassium salts are soluble . [Food—SAP (maple syrup); table salt: Na Cl, K Cl] 2. Nitrates (NO 3 - ), Acetates (CH 3 COO - ), and perchlorates (ClO 4 - ) are soluble . [Sleep—NAP] 3. Silver, lead, and mercury salts are insoluble . [Money] 4. Chlorides, bromides, and iodides are soluble . [Food again—table salt: Na Cl ] 5. (a) Hydroxides of Group 1 metals are soluble . Hydroxides of Group 2 metals starting with calcium are
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Unformatted text preview: moderately soluble . 5. (b) Carbonates (CO 3 2-), hydroxides, oxides, phosphates (PO 4 3-), and sulfides are insoluble . [CHOPS] 6. Sulfates (SO 4 2-) are soluble except for calcium sulfate and barium sulfate. EXAMPLES Silver nitrate + Potassium chloride ? Na 2 SO 4 (aq) + Pb(NO 3 ) 2 (aq) ? Na 2 SO 4 (aq) + Mg(NO 3 ) 2 (aq) ? No Reaction Potassium hydroxide + Iron (III) chloride ? Separation of Precipitate and Solution Filtering Rinsing Separation of Precipitate and Solution Let Settle Decant (not shown) Rinse (not shown) Separation of Precipitate and Solution Use Centrifuge Supernatant Solution Decant (not shown) Rinse (not shown)...
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Ch_4-2_Solubility - moderately soluble . 5. (b) Carbonates...

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