CHEM 1100 Exam 2 Flashcards
(18 cards)
Lose Electrons
Oxidation
Gain electrons
Reduction
Oxidation number of uncombined elements
0
Oxidation number of monatomic ions
Charge written on ion
Oxidation number of oxygen (generally)
-2
Oxidation number of oxygen (H2O2)
-1
Oxidation number of hydrogen (when cation)
+1
Sum of all oxidation numbers equals
total charge of compound
Reducing agent
Compound that is oxidized (loses electrons)
Oxidizing agent
Compound that is reduced (gains electrons)
Combustion rxns use O to produce
CO2 and H2O
Molarity =
moles solute/liters solution
Dilution equation
M1V1 = M2V2
Titration purpose
Determine amount of A by adding known concentration and volume of B
Titrant
Solution with known concentration in burette
Equivalence point
Theoretical point when moles A = moles B
End point
Actual point titration is stopped, color change observed
Pressure =
Force/Area