QR Challenge: Mole Conversion Practice

Created using the ClassTools QR Treasure Hunt Generator

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.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. Determine the number of moles of carbon dioxide in 454 grams	10.3 moles
2. Determine the mass in grams of 3.60 mol of hydrogen sulfate	353 grams
3. Determine the number of particles in 0.35 moles of copper	2.1E23 atoms
4. Determine the number of moles in 4.56E24 formula units of potassium chloride	7.57 moles
5. Determine the molar mass of potassium hydroxide	56 grams
6. Determine the molar mass of magnesium phosphate	262 grams
7. Determine the number of moles in 50 grams of copper I chloride	0.5 moles
8. Determine the molar mass of manganese IV oxide	87 grams

 

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