Chapter_4b-B

Chapter_4b-B - Chapter 4b(4.2& 4.3 Aqueous Reactions...

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Unformatted text preview: Chapter 4b (4.2 & 4.3) Aqueous Reactions Cl– Fe 3+ Cl– Fe 3+ Cl– Cl– Cl– Cl– Aqueous Reactions • Classified by driving force Precipitation Reactions: Precipitation Reactions: CoCl CoCl 2 (aq) + 2 NaOH NaOH (aq) Co(OH) 2 (s) + 2 NaCl (aq) Acid/Base Reactions: Acid/Base Reactions: HCl HCl (aq) + NaOH NaOH (aq) HOH HOH ( l ) + NaCl NaCl (aq) Oxidation-Reduction Reactions: Oxidation-Reduction Reactions: Zn Zn (s) + CuSO CuSO 4 (aq) Cu Cu (s) + ZnSO ZnSO 4 (aq) H + 2e 2e- Precipitation Reactions • Precipitation reaction – Precipitation reaction – • Precipitate – Precipitate – CoCl CoCl 2 (aq) + 2 NaOH NaOH (aq) CaCl CaCl 2 (aq) + Na Na 2 CO CO 3 (aq) Pb(NO Pb(NO 3 ) ) 2 (aq) + 2 KI KI (aq) Co Co (OH) (OH) 2 (s) + 2 Na Na Cl Cl (aq) Pb Pb I I 2 (s) + 2 K K NO NO 3 (aq) Exchange Cations !!! Exchange Cations !!! Solubility: Qualitative vs. Quantitative Solubility Solubility – the maximum amount of that can be dissolved in a given at a specific Every substance is clearly soluble in water to a finite degree • Insoluble means – • Solubility rules based on limits the solubility the solubility set a minimum amount of solute that must dissolve above the limit = below the limit = Solubility Rules (pg.123) Acid/Base Reactions Driving Force = H + H + HBr HBr (aq) + LiOH LiOH (aq) H H OH OH ( l ) + Li Li Br Br (aq) 2 HNO 2 HNO 3 (aq) + Ca(OH) Ca(OH) 2 (s) 2 H 2 H 2 O O ( l ) + Ca( Ca( NO NO 3 ) ) 2 (aq) Exchange H Exchange H + !!!...
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Chapter_4b-B - Chapter 4b(4.2& 4.3 Aqueous Reactions...

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