Practice: Solve for the missing variable in the following circuit.
Basic Redox Concepts
Concept #1: OXIDATION-REDUCTION (REDOX) reactions deal with the transfer of electrons from one reactant to another.
Concept #2: The movement of electrons from one electrode to another helps in the generation of voltage.
Basic Redox Concepts Calculations
Example #1:
Example #2: Basic Redoxs Calculations 1
Practice: Solve for the missing variable in the following circuit.
Example #3: Basic Redoxs Calculations 2
Example #4: Basic Redoxs Calculations 2
Practice: A metal forms the salt MCl 3. Electrolysis of the molten salt with a current of 0.700 A for 6.63 h produced 3.00 g of the metal. What is the molar mass of the metal?
Example #5: Basic Redoxs Calculations 3
Example #6: Basic Redoxs Calculations 3
Example #7: Basic Redoxs Calculations 3
Balancing Redox Reactions
Concept #3: Generally, you will need to balance a redox reaction in an acidic or basic solution.
Example #8: Balance the following redox reaction in acidic solution.
Cr2O72– (aq) + H2O2 (aq) → Cr3+ (aq) + H2O (l) + O2 (g)
Practice: Balance the following redox reaction in basic solution.
Cr2O72– (aq) + SO32– (aq) → Cr3+ (aq) + SO42– (aq)
