1. What is a common redox reaction you know of?
9/8 Question of the Day
What is a common redox reaction you know of?
Oxidized copper on coating of statue of liberty.
Corrosion of metal – loses electrons

2. Oxidation  lose electrons; e.g. metals lose electrons to oxygen
Reduction  gain electrons; e.g. the oxygen receives electrons from metals
OIL RIG

3. LEO GER
Loses
Electrons
Oxidation
Gains
Electrons
Reduction

4. Assigning Oxidation numbers+2 -6 +1 +4 -2
Na2SO3

5. Oxidation Numbers: Rules
Elemental form= 0 (e.g. H in H2)
Monatomic ion= charge (e.g. S2-)
Nonmetals= usually negative (e.g. O=-2, H=+/-1, F=-1)
Sum of oxidation numbers = 0 (e.g. NaCl)
UNLESS polyatomic ion
then = charge

6. Displacement Reactions

7. Activity series
List of metals arranged by ease of oxidation – see table 4.5 (p. 144)

8. Concentration  amount of solute dissolved in a given quantity of solvent

9. It should be noted that…
Concentrations of ions from an electrolyte substance is dependent on chemical formula
1.0 M Na2SO4
2.0 M Na+
1.0 M SO4-

10. Dilution  obtaining lower concentrations by adding water

11. Homework – Due 9/11
, 4.55
4.63, 4.67, 4.68
4.81

12. Solution Stoichiometry & Chem Analysis
Recall Stoichiometry  relative quantities of reactants and products
Titration  process to determine the conc. Of a particular solute by combining unknown with a standard

13. Equivalence point point at which stoichiometrically equivalent quantities are brought together

14. Solve a solution concentration problem in a titration together…