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QR Challenge: National 5 - Revision

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. Calculate the number of moles present in 0.5g of NaCl0.09mol
2. Calculate the relative atomic mass of one mole of potassium hydroxide56
3. Calculate the volume occupied by 0.5 moles of 2mol l-1 hydrochloric acid0.25L/250cm3
4. Calculate the mass of 1 mole of calcium carbonate100g
5. Calculate the heat energy produced when the temperature rise of 200cm3 water is 26oC21.736kJ
6. Calculate the average rate of reaction when 10cm3 of oxygen gas is produced during the first 16seconds of the reaction0.625cm3/s
7. Calculate the gram formula mass of one mole of ammonium nitrate80g
8. Calculate the concentration of 150cm3 of 0.2 moles of potassium iodide solution1.3mol/l
9. Over a period of 30 minutes the temperature rose from 10o to 45o. Calculate the heat energy produced within the 300ml of water43.89kJ
10. (II) sulfate319g
11. Calculate the average rate of reaction between 25 minutes and 50 minutes if 4g reactant has been used up0.16g/min
12. Calculate the mass of NaOH required to make 200cm3 of a 0.1mol l-1 solution0.005g
13. Calculate the mass of LiCl required to make 0.1L of a 5mol l-1 solution0.012g
14. During a titration 15cm3 of 0.1mol l-1 hydrochloric acid was used to neutralise 20cm3 of sodium hydroxide. Calculate the concentration of sodium hydroxide0.075mol/l
15. During a titration 40cm3 of 0.2mol l-1 sodium hydroxide was neutralised by 0.5mol l-1 hydrochloric acid. Calculate the volume required of hydrochloric acid16cm3

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_number_of_moles_present_in_0.5g_of_NaCl

Question 1 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_relative_atomic_mass_of_one_mole_of_potassium_hydroxide

Question 2 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_volume_occupied_by_0.5_moles_of_2mol_l-1_hydrochloric_acid

Question 3 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_mass_of_1_mole_of_calcium_carbonate

Question 4 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_heat_energy_produced_when_the_temperature_rise_of_200cm3_water_is_26oC

Question 5 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_average_rate_of_reaction_when_10cm3_of_oxygen_gas_is_produced_during_the_first_16seconds_of_the_reaction

Question 6 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_gram_formula_mass_of_one_mole_of_ammonium_nitrate

Question 7 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_concentration_of_150cm3_of_0.2_moles_of_potassium_iodide_solution

Question 8 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Over_a_period_of_30_minutes_the_temperature_rose_from_10o_to_45o._Calculate_the_heat_energy_produced_within_the_300ml_of_water

Question 9 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=(II)_sulfate

Question 10 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_average_rate_of_reaction_between_25_minutes_and_50_minutes_if_4g_reactant_has_been_used_up

Question 11 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_mass_of_NaOH_required_to_make_200cm3_of_a_0.1mol_l-1_solution

Question 12 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_mass_of_LiCl_required_to_make_0.1L_of_a_5mol_l-1_solution

Question 13 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=During_a_titration_15cm3_of_0.1mol_l-1_hydrochloric_acid_was_used_to_neutralise_20cm3_of_sodium_hydroxide._Calculate_the_concentration_of_sodium_hydroxide

Question 14 (of 15)

 


National 5 - Revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=During_a_titration_40cm3_of_0.2mol_l-1_sodium_hydroxide_was_neutralised_by_0.5mol_l-1_hydrochloric_acid._Calculate_the_volume_required_of_hydrochloric_acid

Question 15 (of 15)