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a. The cathode is the electrode (terminal) at which reduction occurs. Write the correct half cell reaction (at bottom of side of U tube that you say it occur) including number of electron moving b. The other electrode, the anode, is where oxidiation occurs. Write the correct half cell reaction (at bottom of side of U tube that you say it occur) including number of electron moving c. Indicated on the drawing the type of material you used for each electrode (you symbol of the electrode can look a "t" with a long body and no hook at bottom. d. Alligator clips and wire (called Leads) can be shown as lines and battery can be a box with the word "Battery" or capital letter P (also could put the actual symbol for battery). |
1a. The cathode is the electrode (terminal) at which reduction occurs. Write the correct half cell reaction (at bottom of side of U tube that you say it occur) including number of electron moving 1b. The other electrode, the anode, is where oxidiation occurs. Write the correct half cell reaction (at bottom of side of U tube that you say it occur) including number of electron moving 1c. Indicated on the drawing the type of material you used for each electrode (you symbol of the electrode can look a "t" with a long body and no hook at bottom. 1d. Alligator clips and wire (called Leads) can be shown as lines and battery can be a box with the word "Battery" or capital letter P (also could put the actual symbol for battery). |
3a. Leave some blank space and then write each half cell and put the voltage for each half cell (you determine from Standard Reduction Potential Table given to you) to the far right side of the line you wrote the half cell reaction on. Stack two lines of information as if you were adding them (which you are going to do!). Then put an addition line below it and then add the two half cell together to the overall balanced chemical reaction. Add the voltages of the two half cells to get the Ecell for the overall reaction (also called cell). |
3. 2019-2020 Student don't do this partLeave some blank space and then write each half cell and put the voltage for each half cell (you determine from Standard Reduction Potential Table given to you) to the far right side of the line you wrote the half cell reaction on. Stack two lines of information as if you were adding them (which you are going to do!). Then put an addition line below it and then add the two half cell together to the overall balanced chemical reaction. Add the voltages of the two half cells to get the Ecell for the overall reaction (also called cell). |
1. From the balanced complete/molecular chemical reaction in Q4a, show all work in determining what is oxidized, what is reduced, what is oxidizing agent, what is reducing agent and balance the Redox by Oxidation Number. |
1. From the balanced complete/molecular chemical reaction in Q4a (or given to you in the lab explanation), show all work in determining what is oxidized, what is reduced, what is oxidizing agent, what is reducing agent and balance the Redox by Oxidation Number. |
3a. From your balanced equation for the overall chemical change in this electrolysis reaction and given above the Ecell (cell voltage) including the sign, what does the sign of the Ecell mean (Hint: In terms of energy)? |
3a. 2019-2020 students do not doFrom your balanced equation for the overall chemical change in this electrolysis reaction and given above the Ecell (cell voltage) including the sign, what does the sign of the Ecell mean (Hint: In terms of energy)? |
4. What are the possible reasons (limiting factors) why this reaction would "stop". What is not one of the possible reasons (Hint: What does the sign of the Ecell mean.) |
4. What are the possible reasons (limiting factors) why this reaction would "stop". What is not one of the possible reasons (2019-2020 students do not do Hint: What does the sign of the Ecell mean.) |
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