Lesson 6
Part D
Learning Intention: Back calculate to verify concentration and justify why it might be too high/low.
Success Criteria
2. I can explain techniques that minimize errors that could occurring during titration. (e.g. pipetting accurately)
8. I can convert between different units of concentration and back-correlate to the undiluted sample concentration.
9. I can compare the experimentally calculated unknown concentration against the manufacturer’s claimed concentration. If it does not match, justify why that could be.
Learning Tasks
Do Now: Read over the AS 91910 Marking Checklist and rank parts A-C from needs the most work (1) to needs the list work (3).
Copy down Ms Garlick's Part D notes. (Blank Copy of Part D Teaching Version)
Study or work on your internal.
Other videos from previous videos that might help, as I'm mindful I didn't explain it well.
Homework
Complete the Part D Practice write up
This lesson was used starting Friday, June 21st, 2024, Term 2 Week 7 until... The former is when it was last updated.
Teacher Notes
Part C Teaching Version used 0.1 M HCl that was labelled as "10-Fold Diluted Purified Household Sour Cream" and 0.1 M NaOH.
Part C Practice Version used 0.2 M HCl that was labelled as "4-Fold Diluted Purified Household Buttermilk" and 0.15 M NaOH.
For the summative internal, email Keri for the resource (keri.garlick@gmail.com).