1. Virtual lab Electrochem January 18, 2018
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

2. January 18, 2018
Do Now (4 min)
Learning Target: I can Use a virtual lab to determine the endpoint of redox titrations based on half reactions
Do Now:
Complete the FIFTH question on your MC DO NOW SHEET
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

3. January 18, 2018
Review: Do Now
The question below refers to the reactions represented below, which are involved in a demonstration commonly known as “underwater fireworks.” Reaction 1: CaC2 (s) + 2 H2O (l)  C2H2 (g) + Ca(OH)2 (s) Reaction 2: NaOCl (aq) + 2 HCl (aq)  Cl2 (g) + NaCl (aq) + H2O (l) Reaction 3: C2H2 (g) + Cl2 (g)  C2H2Cl2 (g) Ca(OH)2 (s) precipitates when a 1.0 g samples of CaC2 (s) is added to 1.0 L of distilled water at room temperature. If a g sample of CaC2 (s) (molar mass 64 g/mol) is used instead and all of it reacts, which of the following will occur and why? (The value of Ksp for Ca(OH)2 is 8.0 x )
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

4. Review: Do Now Ca(OH)2 will precipitate because Q > Ksp
January 18, 2018
Review: Do Now
Options
Why is each option partially right?
Choose the most correct answer, and why
Ca(OH)2 will precipitate because Q > Ksp
Ca(OH)2 will precipitate because Q < Ksp
Ca(OH)2 will not precipitate because Q > Ksp
Ca(OH)2 will not precipitate because Q < Ksp
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

5. Manganate (VII) / Fe2+ titration
January 18, 2018
Manganate (VII) / Fe2+ titration
1. Given that aqueous manganate(VII) (permanganate) ions will be converted to Mn2+(aq) ions in acid solution, write a half equation to summarize this process.
Write a half equation to summarize the conversion of Fe2+(aq) to Fe3+(aq).
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

6. Manganate (VII) / Fe2+ titration
January 18, 2018
Manganate (VII) / Fe2+ titration
3. Combine the equations in #1 and #2 above to form a complete REDOX equation, and clearly identify the oxidizing agent and the reducing agent.
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

7. January 18, 2018
Virtual Lab (50 min)
Independently, complete the lab. Use the website url to access the virtual lab and complete each section as you come across it. Due today!
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

8. Summary What Did you see? January 18, 2018
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions

9. January 18, 2018
Exit ticket (3 min)
On a separate sheet of paper: What is the difference between an acid base titration and a redox titration?
Learning Target: I CAN Use a virtual lab to determine the endpoint of redox titrations based on half reactions