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Drill: Calculate the solubility of PbSO 4 K sp = 2.0 x 10 -14

Drill: Calculate the solubility of PbSO 4 K sp = 2.0 x 10 -14. Oxidation Reduction Reactions (REDOX). REDOX Reactions. Chemical reactions in which electrons are transferred. Chemical Charge.

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Drill: Calculate the solubility of PbSO 4 K sp = 2.0 x 10 -14

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  1. Drill: Calculate the solubility of PbSO4Ksp = 2.0 x 10-14

  2. Oxidation Reduction Reactions(REDOX)

  3. REDOX Reactions • Chemical reactions in which electrons are transferred

  4. Chemical Charge • A positive, neutral, or negative number assigned to a particle & determined by the difference between the # of protons & electrons

  5. Oxidation Number • The charge of a single atom

  6. Oxidation • The act of losing electrons • Oxidation number increases

  7. Reduction • The act of gaining electrons • Oxidation number decreases

  8. REDOX Fact • You cannot have oxidation without reduction or reduction without oxidation

  9. Oxidizing Agent • A substance that oxidizes another • The oxidizing agent will be reduced

  10. Reducing Agent • A substance that reduces another • The reducing agent will be oxidized

  11. Determine elements being: oxidized & reduced MnO4-1 + NH3 MnO2 + NO2-1

  12. Drill: determine ox # of each element: MnO4-1 + Fe Mn2O3 + FeO

  13. Balance the following in Acid: MnO4-1 + Fe Mn2O3 + FeO

  14. Balancing REDOX Reactions

  15. Balancing Redox Rxns • Determine all ox # • Determine elements being oxidized & reduced • Divide rxn into half-rxns • Balance half-rxns

  16. Balancing Half-Rxns • Balance redox elements • Balance ox # with e- • Balance e- between the two half-rxns

  17. Balancing Half-Rxns • Balance total charge with H+ or OH- • Balance H’s with water • Check balance with oxygen

  18. Balancing Redox Rxns • 5) Add the two half-reactions • Cancel like substances from each side of the full reaction • Check work

  19. Drill: Determine Ox #: • MnO2 + Cl-1 • Mn+2 + Cl2 • in acid

  20. Balance Redox Rxn: • MnO2 + Cl-1 • Mn+2 + Cl2 • in acid

  21. Balance Redox Rxn: • Cr2O7-2 + NH3 • Cr+3 + NO3-1 • in base

  22. Balance REDOX Rxn: • MnO4-1 + N2O3 • Mn+2 + N2O5 • in acid

  23. Drill: Determine Ox # for All MnO4-1 N2O3 Mn+2 N2O5

  24. Balance Redox Rxn: • FeCl2 + KNO3 • FeCl3 + KNO2 • in base

  25. Balance Redox Rxn: • SO2 + Pb(OH)2 • SO3 + Pb • in base

  26. Drill Balance the following half-reaction: H2O O2 In acid

  27. Balance Rxn: • HNO3 + Cu • N2O + Cu+2

  28. Balance Redox Rxn: • Fe(NO3)3 + Cr(OH)4-1 • Fe(NO3)2 + CrO4-2

  29. Balance Redox Rxn: • SnF2 + KIO4 • KI + SnF4 • in acid

  30. Balance Redox Rxn: • IO3-1 + I-1 • I3-1 • in acid

  31. Balance Redox Rxn: • MnO2 + P4 • Mn2O7 + PH3 • in acid

  32. Balance Redox Rxn: • PbBr2 + O2 + K+ • PbBr4 + K2O • in acid

  33. Balance Redox Rxn: • Ca + VO4-3 • CaO + V+2 • in acid

  34. Balance Redox Rxn: • Ni(OH)2 + N2H4 • Ni + N2 • in base

  35. Balance Redox Rxn: • P2O3 + K2CrO3 • K3PO4 + Cr+2 • in acid

  36. Balance Redox Rxn: • SO + H2Cr2O7 • H2SO4 + Cr+2

  37. Balance Redox Rxn: • PH3 + KMnO4 • P2O5 + Mn2O3 • in KOH

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