QR Challenge: Carboxylic acids, esters, acyl chlorides - ans

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa ) onto their mobile devices
Bring these devices into the lesson.

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question	Answer
1. An alcohol and sulfuric acid
2. Heat under reflux
3. Ethylbutanoate
4. Lithium aluminium hydride
5. Dry ether
6. Butan-1-ol
7. Phosphorus pentachloride?
8. Ethanoyl chloride
9. Sodium, sodium carbonate, sodium hydroxide, an appropriate metal, metal carbonate or metal oxide or hydroxide
10. Heat under reflux
11. Sodium methanoate
12. Sulfuric acid
13. Heat under reflux, dilute
14. propan-1-ol and ethanoic acid
15. Sodium hydroxide
16. Heat under reflux, dilute
17. butan-1-ol and sodium ethanoate
18. propylethanoate and ethanoic acid
19. ethylylethanoate and propan-1-ol
20. ethylylethanoate and propan-1-ol
21. water
22. ethanoic acid
23. ethanol
24. ethylpentanoate
25. ammonia
26. pentanamide
27. ethylamine
28. butan-2-ol