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E-DAY PROJECT - Redox Practical Investigation

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Last updated about 1 year ago
16 questions
Note from the author:
I have made and inserted gifs of the simulations for you directly into this Formative. You may use your textbook to complete this assessment.
I have made and inserted gifs of the simulations for you directly into this Formative. You may use your textbook to complete this assessment.
Part A: Reactivity Series
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4
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2
Part B: Redox at the molecular level
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5
Some metals react readily with others, displacing them out of a solution and sometimes, there is no reaction.
For these simulations you need to observe in each case whether a reaction takes place between the two metals.
Where a reaction does take place, describe your observations. You will also calculate the Eo cell value for each combination.

SIMULATION 1

The reactions of Mg with various metal solutions.
Use the simulation to observe the reactivity of magnesium in each solution.
Question 1
1.

FOR EACH BEAKER:
FIRST record if a reaction takes place or does not take place.
SECOND If a reaction does takes place, record ALL your observations by choosing from the list of options. If there is no obvious change to the colour of a solution or the piece of metal, then no observation about the solution or piece of metal needs to be made.

  • No reaction takes place
  • Reaction takes place
  • Observation: A dark grey deposit forms on the metal
  • Observation: A silvery grey deposit forms on the metal
  • Observation: A reddish-brown deposit forms on the metal
  • Observation: The blue solution becomes lighter in colour
  • Observation: The blue solution becomes darker in colour
  • Observation: The colourless solution turns blue
  • Mg in Mg(NO3)2
  • Mg in Zn(NO3)2
  • Mg in Cu(NO3)2
  • Mg in AgNO3
Question 2
2.

TWO observations were seen in the Mg in Cu(NO3)2 experiment. Explain why each one occurred.

Question 3
3.

Calculate the Eo cell values for each of the redox reactions with magnesium metal. Choose the correct answer (with the correct sign) for each combination from the list of options.

  • - 3,17 V
  • - 2,71 V
  • - 1,61 V
  • - 1,56 V
  • - 1,10 V
  • - 0,46 V
  • 0,00 V
  • + 0,46 V
  • + 1,10 V
  • + 1,56 V
  • + 1,61 V
  • + 2,71 V
  • + 3,17 V
  • Mg in Mg(NO3)2
  • Mg in Zn(NO3)2
  • Mg in AgNO3
  • Mg in Cu(NO3)2

SIMULATION 2

The reactions of Cu with various metal solutions
Use the simulation to observe the reactivity of copper in each solution.
Question 4
4.

FOR EACH BEAKER:
FIRST record if a reaction takes place or does not take place.
SECOND If a reaction takes place, record ALL your observations by choosing from the list of options. If there is no obvious change to the colour of a solution or the piece of metal, then no observation about the solution or piece of metal needs to be made.

  • No reaction takes place
  • Reaction takes place
  • Observation: A dark grey deposit forms on the metal
  • Observation: A silvery grey deposit forms on the metal
  • Observation: A reddish-brown deposit forms on the metal
  • Observation: The blue solution becomes lighter in colour
  • Observation: The blue solution becomes darker in colour
  • Observation: The colourless solution turns blue
  • Cu in Mg(NO3)2
  • Cu in Zn(NO3)2
  • Cu in Cu(NO3)2
  • Cu in AgNO3
Question 5
5.

Calculate the Eo cell values for each of the redox reactions with copper metal. Choose the correct answer (with the correct sign) for each combination from the list of options.

  • - 3,17 V
  • - 2,71 V
  • - 1,61 V
  • - 1,56 V
  • - 1,10 V
  • - 0,46 V
  • 0,00 V
  • + 0,46 V
  • + 1,10 V
  • + 1,56 V
  • + 1,61 V
  • + 2,71 V
  • + 3.17 V
  • Cu in Mg(NO3)2
  • Cu in Zn(NO3)2
  • Cu in Cu(NO3)2
  • Cu in AgNO3

SIMULATION 3

The reactions of Zn with various metal solutions
Use the simulation to observe the reactivity of zinc in each solution.

Question 6
6.

FOR EACH BEAKER:
FIRST record if a reaction takes place or does not take place.
SECOND If a reaction takes place, record ALL your observations by choosing from the list of options. If there is no obvious change to the colour of a solution or the piece of metal, then no observation about the solution or piece of metal needs to be made.

  • No reaction takes place
  • Reaction takes place
  • Observation: A dark grey deposit forms on the metal
  • Observation: A silvery grey deposit forms on the metal
  • Observation: A reddish-brown deposit forms on the metal
  • Observation: The blue solution becomes lighter in colour
  • Observation: The blue solution becomes darker in colour
  • Observation: The colourless solution turns blue
  • Zn in Mg(NO3)2
  • Zn in Zn(NO3)2
  • Zn in Cu(NO3)2
  • Zn in AgNO3
Question 7
7.

Calculate the Eo cell values for each of the redox reactions with zinc metal. Choose the correct answer (with the correct sign) for each combination from the list of options.

  • - 3,17 V
  • - 2,71 V
  • - 1,61 V
  • - 1,56 V
  • - 1,10 V
  • - 0,46 V
  • 0,00 V
  • + 0,46 V
  • + 1,10 V
  • + 1,56 V
  • + 1,61 V
  • + 2,71 V
  • + 3.17 V
  • Zn in Mg(NO3)2
  • Zn in Zn(NO3)2
  • Zn in Cu(NO3)2
  • Zn in AgNO3

SIMULATION 4

The reactions of Ag with various metal solutions
Use the simulation to observe the reactivity of silver in each solution.

Question 8
8.

FOR EACH BEAKER:
FIRST record if a reaction takes place or does not take place.
SECOND If a reaction takes place, record ALL your observations by choosing from the list of options. If there is no obvious change to the colour of a solution or the piece of metal, then no observation about the solution or piece of metal needs to be made.

  • No reaction takes place
  • Reaction takes place
  • Observation: A dark grey deposit forms on the metal
  • Observation: A silvery grey deposit forms on the metal
  • Observation: A reddish-brown deposit forms on the metal
  • Observation: The blue solution becomes lighter in colour
  • Observation: The blue solution becomes darker in colour
  • Observation: The colourless solution turns blue
  • Ag in Mg(NO3)2
  • Ag in Zn(NO3)2
  • Ag in Cu(NO3)2
  • Ag in AgNO3
Question 9
9.

Calculate the Eo cell values for each of the redox reactions with silver metal. Choose the correct answer (with the correct sign) for each combination from the list of options.

  • - 3,17 V
  • - 2,71 V
  • - 1,61 V
  • - 1,56 V
  • - 1,10 V
  • - 0,46 V
  • 0,00 V
  • + 0,46 V
  • + 1,10 V
  • + 1,56 V
  • + 1,61 V
  • + 2,71 V
  • + 3.17 V
  • Ag in Mg(NO3)2
  • Ag in Zn(NO3)2
  • Ag in Cu(NO3)2
  • Ag in AgNO3
Question 10
10.

Conclusion:

Based on the results of Part A of this investigation, rank the metals in order from most reactive to least reactive:

  1. Zn
  2. Cu
  3. Mg
  4. Ag
In this simulation you can observe a redox reaction at the molecular level.

SIMULATION 5

Zn in Cu(NO3)2 at the molecular level

Question 11
11.
Identify the half-reactions for this reaction:
Oxidation 1/2 reaction: _____________________
Reduction 1/2 reaction: ____________________
Other Answer Choices:
Zn2+ + 2e- ➝ Zn
Zn ➝ Zn2+ + 2e-
Cu2+ + 2e- ➝ Cu
Cu ➝ Cu2+ + 2e-
Question 12
12.

Is this reaction spontaneous or non-spontaneous?

Question 13
13.

Explain your answer above by refering to the relative strengths of the reducing agents. Complete the explanation by dragging the appropriate substance into each step of the explanation:

  • Zn
  • Zn2+
  • Cu
  • Cu2+
  • _____ is a better reducing agent
  • than _______
  • Therefore in the presence of _____ ,
  • _______ will/will not [don't need to distinguish]
  • be readily reduced to form ________

Simulation 6

Cu in Zn(NO3)2 at the molecular level

Question 14
14.
Identify the half-reactions for this reaction:
Oxidation 1/2 reaction: ____________________
Reduction 1/2 reaction: ____________________
Other Answer Choices:
Cu2+ + 2e- ➝ Cu
Zn2+ + 2e- ➝ Zn
Cu ➝ Cu2+ + 2e-
Zn ➝ Zn2+ + 2e-
Question 15
15.

Is this reaction spontaneous or non-spontaneous?

Question 16
16.

Explain your answer above by refering to the relative strengths of the reducing agents. Complete the explanation by dragging the appropriate substance into each step of the explanation:

  • Zn
  • Zn2+
  • Cu
  • Cu2+
  • _____ is a better reducing agent
  • than _______
  • Therefore in the presence of _____ ,
  • _______ will/will not [don't need to distinguish]
  • be readily reduced to form ________