CHEMISTRY 116 Lab Repport. 116Chem lab Oxidation-Reduction Activity Series: Exercise 1: Describing an Oxidation-Reduction Reaction; Data Table 1. Redox Reaction of Copper and Silver Nitrate and Exercise 2: Creating an Activity Series, Data Table 2. Redox Reactions of Copper, Lead, and Zinc. All Questions Answered.

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Objective: In this experiment we had to add a solution that contains silver ions to elemental copper in order to elicit a redox reaction; then we observed the reaction and wrote an equation that des... cribed the movement of electrons. Procedure: 1. Gather a test tube, the silver nitrate (AgNO3) solution, the copper foil pieces (Cu), and the plastic forceps (tweezers). Note: Use plastic forceps, as metal forceps may react with the other metals in the experiment. 2. Record initial observations of the appearance of the AgNO3 and Cu. Record under “Initial observations before beginning” in Data Table 1 in your Lab Report Assistant. 3. Use the plastic forceps to add 2 pieces of Cu to the test tube. 4. Add the entire contents of the AgNO3 bottle to the test tube. Discard the empty bottle in a trash bin. Note: Take care to avoid any skin contact with the silver nitrate. 5. Observe the reaction for about 1 minute. Describe the appearance of any solids, liquids, and gases in the test tube. Record observations in Data Table 1. 6. Allow the reaction to continue for 30 minutes, and again record observations of the appearance of liquids, gases, and solids in Data Table 1. (Note: As you wait, continue with the final steps of the exercise and complete the questions at the end of the exercise). 7. In Data Table 1, write a balanced chemical equation for the redox reaction. Include oxidation numbers and total charge contributions for the elements involved in the reaction. 8. Identify the element that is oxidized and the element that is reduced. Identify the spectator ion, the ion that exists in the same form in both the reactants and the products. Record each in Data Table 1. 9. Identify which element acted as the oxidizing agent, and identify which element acted as the reducing agent. Record each in Data Table 1. 10. Cleanup: Pour the liquid contents of the test tube down the sink and flush with copious amounts of water. Dispose of the solids in a trash bin. Clean the test tube with soap and water, dry, and place the test tube back in your kit for future use. Exercise 1: Describing an Oxidation-Reduction Reaction Data Table 1. Redox Reaction of Copper and Silver Nitrate Define oxidation, reduction, and oxidation number. Describe how oxidation and reduction affect the oxidation number of an element. Define oxidizing agent, reducing agent, and spectator ion In the reaction of copper and silver nitrate, a new substance appeared in the test tube. Describe the physical appearance of the substance and identify its chemical formula Given an activity series in which the most active metals are at the top of the list and the least active metals are at the bottom of the list, would copper be listed above silver or would silver be listed above copper? Support your answer with data from Data Table 1Solid copper sulfide and silver nitrate react to form copper (II) nitrate and solid silver sulfide. Write a balanced chemical equation that describes the reaction. Identify the oxidation number of each element in the reaction. (You do not need to include the total List each of the metals tested in Exercise 2. Indicate the oxidation number when each element is pure and the oxidation number when each element is in a compoundWhich of the metals in Exercise 2 was the strongest oxidizing agent? Was there an instance when this metal also acted as a reducing agent? Explain your answer using data from DataWhich of the metals in Exercise 2 was the strongest reducing agent? Was there an instance when this metal also acted as an oxidizing agent? Explain your answer using data from DataHow does ease of oxidation correlate with activity? Do highly active metals tend to donate electrons or accept electrons from other metalsCreate an activity series for copper, lead, and zinc. Place the most active metal at the top of the list [Show More]

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