need the lab report form done, the lab itself is already done. no plagiarism and the work should not be posted online.

need the lab report form done, the lab itself is already done. no plagiarism and the work should not be posted online.


1. Electrolysis of Copper Positive Post (Anode) Negative Post (Cathode) Mass of Ce Electrode Betore Elects | 7-89 3x9 b 2319 3 “ime of Eletrolysi (minutes) 15 ming | 15 mins Mass of Copper Electrode gegzar 4.0202 gett Gaz g After Electrolysis Mass change of Copper | Electrode (=)o- 072 +)0- Fay reine | ©001/3304 | 0-0al§5404 | Charge transferred during Electrolysis Total Current passed through each electrode % Difference in current values 2. Qualitative evaluation of spontaneous and non-spontancous reactions Mekal Fong Born Siler A» Black writ a ln metatin CuSO soln | rust colored vesidue Rast fom Ha 01 metal is being dlepasited ln metalGraphite/ 5V 5 [pacers (CusOt soy | He greet cu metal No cheng ¢ fin Zn(NO3)2 soln [Cu metaliGraphite/ 9V | Aurand Slede ard solufion durned bl from Graphite wos dissiping and Baty - [Battery (Zn(NO3)2 soln) de (en 3. Voltaic cell potentials (raw data, 3.3-3.4) Positive Terminal (+) Negative Terminal (-) Voltage (must be positive) Copp Eine 0-61) Copper Lead 0-353 Copper Tron 0-aal Silvey Coppes— 23 ha 0. Name Group Results 1. Electrolysis of Copper Positive Post (Anode) Negative Post (Cathode) Mass of Copper Electrode Before Electrolysis Time of Electrolysis (minutes) Mass of Copper Electrode After Electrolysis Mass change of Copper Electrode moles of Copper consumed/generated Charge transferred during Electrolysis Total Current passed through each electrode % Difference in current values 2. Qualitative evaluation of electrolytic and voltaic cells. Electrode Observations Zn metal in CuSO4 solution Zn metal/Graphite/ 9V Battery (CuSO4 solution) Cu metal in Zn(NO3)2 solution Cu metal/Graphite/ 9V Battery (Zn(NO3)2 solution) 3. Voltaic cell potentials (raw data, 3.3-3.4) Positive Terminal (+) Negative Terminal (-) Voltage (must be positive) Voltaic cell potentials ordered (including Cu/Cu2+; 3.5) Positive Terminal (+) Negative Terminal (-) Voltage (must be positive) 4. Reduction Potentials (4.5-4.8) Metal Reduction Potential Reduction Potential (Cu reference) (4/7) Adjusted Reduction Potential (Hydrogen reference – +0.34V) Reduction Potential from table (Chang p766) % Error Questions 1.Write the overall chemical reaction for each voltaic cell examined (note that there must be both an oxidation and a reduction). 1.What did you observe in the qualitative evaluation of voltaic and electrolytic cells. Identify all cells that were voltaic and all cells that were electrolytic. For one of the electrolytic cells explain how you could prepare a voltaic cell from the same materials. 1.Using standard cell reduction potentials indicate the voltage expected for each of the following cells under standard conditions. Label each cell as voltaic or electrolytic. a)Cr(s) | Cr3+(aq) || Hg22+(aq) | Hg(l) a)I-(aq) | I2 (s) || S2O82-(aq) | SO42-(aq) (Where have you seen this reaction before?) a)Al(s) | Al3+(aq) || F2 (g) | F_(aq) a)Br-(aq) | Br2 (l) || Cl2 (g) | Cl-(aq)