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QR Challenge: Chemistry Chapter 11 Quiz

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

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. In the equation H2(g) + Cl2(g)--> 2HCl(g), one volume of hydrogen yields how many volumes of hydrogen chloride? 2
2. What is the volume, in liters, of 21.5 mole F2 at STP? 482 L
3. Find the volume, in liters, of 28.00 g CO2 at STP. 14.25 L
4. What value is used for the standard molar volume of a gas? 22.4 L
5. At constant temperature and pressure, the volume of a gas is directly proportional to its ___. a. number of moles b. molar mass c. rate of diffusion d. density at STP. a
6. Calculate the pressure, in atm, exerted by the following information: 1.75 L of HF containing 0.550 mol at 310.0 K. 8.00 atm
7. Find the mass of 3.60 L of Cl2 at 0.950 atm and 250.0 K. 11.8 g
8. If the density of an unknown gas is 2.20 g/L at -18 degrees Celsius and 2.57 atm, what is the molar mas of this gas? 17.9 g/mol

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=In-the-equation-H2(g)-+-Cl2(g)-->-2HCl(g),-one-volume-of-hydrogen-yields-how-many-volumes-of-hydrogen-chloride?

Question 1 (of 8)

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-volume,-in-liters,-of-21.5-mole-F2-at-STP?

Question 2 (of 8)

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Find-the-volume,-in-liters,-of-28.00-g-CO2-at-STP.

Question 3 (of 8)

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-value-is-used-for-the-standard-molar-volume-of-a-gas?

Question 4 (of 8)

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=At-constant-temperature-and-pressure,-the-volume-of-a-gas-is-directly-proportional-to-its-___.-a.-number-of-moles-b.-molar-mass-c.-rate-of-diffusion-d.-density-at-STP.

Question 5 (of 8)

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate-the-pressure,-in-atm,-exerted-by-the-following-information:-1.75-L-of-HF-containing-0.550-mol-at-310.0-K.

Question 6 (of 8)

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Find-the-mass-of-3.60-L-of-Cl2-at-0.950-atm-and-250.0-K.

Question 7 (of 8)

 


Chemistry Chapter 11 Quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=If-the-density-of-an-unknown-gas-is-2.20-g/L-at--18-degrees-Celsius-and-2.57-atm,-what-is-the-molar-mas-of-this-gas?

Question 8 (of 8)