Give a specific example from this experiment of an error that would lead to a percent yield greater than 100%. Explain the effect. 14. Prepare a steam bath (Figure 6.1) and place the evaporating dish over the bath to dry the solid.Once dry, remove the boiling chips from the evaporating dish, dry off the bottom, and weigh theevaporating dish plus copper. Records its mass. Calculate the final mass of copper.powerStirreriHot Platehot topCalculate the percent yield of the copper.Figure 6.1.CalculationsWhat is the theoretical yield of the copper solid, Cu?Precipitate-Evaporating dish-Boiling chipsCHayden McNeil, LLC-Steam bathClassifying Reactions in the Copper CycleExperi655 Part A: Dissolving the Cu(s)1. Weigh approximately 0.500 g of copper wire provided to the nearest 0.001 g and record its mass(pg. 57, #1). Transfer the Cu into a clean, dry 250-ml beaker.2. Obtain 5 mL of concentrated HNO, and add to the beaker containing the copper wire. This stepMUST BE DONE IN THE HOOD. **If the HNO, gets on your skin, wash immediately with coldwater for 10 minutes and inform your TA.**3. After the reaction is complete, add 100 mL of distilled H₂O. Describe your observations (colorchange, temperature change, evolution of gas, etc.) on the Report Sheet (pg. 57, #6).Part B: Precipitating Cu(OH),(s) and Forming Cuo(s)4. Add 30 mL of 3.0 M NaOH to the solution in your beaker and describe the reaction on yourReport Sheet (pg. 57, # 7). Add a couple of boiling chips and gently heat the solution on a hotplate, just to the boiling point. Describe and record your observations (pg. 57, #8).5. Remove the beaker from the hot plate and let it cool down to room temperature. Record yourobservations. Prepare an ice bath in a 400-mL beaker by filling the beaker about half full with iceand 20 mL of water.6. Place the reaction beaker in the ice bath. The solid will settle out and cool. After about 5 minutesor when a clear (no cloudiness) solution appears above the solid, slowly and carefully decant offas much of the supernatant (solution above the solid) as possible into a spare beaker to discardlater. Do not lose any of the solid (pg. 57, #9)!Part C: Dissolving the CuO(s)7. Obtain 15 mL of 6 M H₂SO, and slowly add to the beaker containing the solid from step #6.(Beaker B). Stir gently (pg. 57, #10).If the H₂SO, gets on your skin, wash immediately with cold water for10 minutes and inform your TA.8. When the entire solid has dissolved, the solution will be clear (not cloudy). If any cloudiness re-mains, add 1 additional mL of 6 M H₂SO, and stir. Repeat until solution is clear.9. Record your observations.Part D: Reforming Cu(s) via Reduction with Zinc10. In the hood, add 2.0 g of zinc metal provided all at once and stir until the supernatant liquid (thesolution above the solid) is colorless. To speed up the reaction, occasionally use your stirring rodto mash the zinc (pg. 58, #11 & #12).11. When gas evolution has become VERY SLOW, heat the solution gently (not to boiling) on a hotplate and allow it to cool. When all of the zinc has reacted, bubbles will cease forming. Let the solidsettle out. Slowly and carefully decant the supernatant liquid of the solid (pg. 58, #13 a) and b)).12. Record your observations of the reaction and the solid.13. Transfer the precipitate to a preweighed evaporating dish and record its mass on your ReportSheet. Wash the solid copper using 5 mL distilled water, allow it to settle, decant the solution,and repeat the process. Wash in the same manner using 5 mL methanol, and then one final timeusing 5 mL acetone (pg. 58, #14).Classifying Reactions in the Copper Cycle

Question

Accepted Answer

A percentage yield greater than 100% is possible if the final measurement of the product contains…