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sing two doubly-clipped wires, he LED with the cathode of the end of the same LED with the nd see if the LED lights up. If discuss how you can change LED light up. You may need groups. The goal is to make Try the other LED after you The first one. porous cup and return it to solid waste. Use tongs to solid waste container. Do as the ions are hazardous. Calculations Practice Problem 1: Which reaction will occur spontaneously? a) a manganese strip in tin(II) solution or b) a tin strip in manganese(II) solution? Answer: a ■Practice Problem 2: A galvanic cell is constructed using two half-cells: Bi(s) in 0.1 M Bi(NO3)3(aq) and Zn(s) in 0.1 M ZnSO4(aq). The two half cells are connected by a KNO3 salt bridge and two copper wires from the electrodes to a voltmeter. Which one will be the anode: Bi(s) or Zn(s)? What is the standard cell potential? Write the cell diagram (line notation) for this cell. Answer: Zn has the lower Ered so it will be the anode where oxidation takes place. Ecell = Eox + Ered= -(-0.7618 V)+(0.308 V) = 1.069 V. Zn(s) | ZnSO4(aq, 0.1 M) || Bi(NO), (aq, 0.1 M) | Bi(s)

sing two doubly-clipped wires, he LED with the cathode of the end of the same LED with the nd see if the LED lights up. If discuss how you can change LED light up. You may need groups. The goal is to make Try the other LED after you The first one. porous cup and return it to solid waste. Use tongs to solid waste container. Do as the ions are hazardous. Calculations Practice Problem 1: Which reaction will occur spontaneously? a) a manganese strip in tin(II) solution or b) a tin strip in manganese(II) solution? Answer: a ■Practice Problem 2: A galvanic cell is constructed using two half-cells: Bi(s) in 0.1 M Bi(NO3)3(aq) and Zn(s) in 0.1 M ZnSO4(aq). The two half cells are connected by a KNO3 salt bridge and two copper wires from the electrodes to a voltmeter. Which one will be the anode: Bi(s) or Zn(s)? What is the standard cell potential? Write the cell diagram (line notation) for this cell. Answer: Zn has the lower Ered so it will be the anode where oxidation takes place. Ecell = Eox + Ered= -(-0.7618 V)+(0.308 V) = 1.069 V. Zn(s) | ZnSO4(aq, 0.1 M) || Bi(NO), (aq, 0.1 M) | Bi(s)

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 85AP
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sing two doubly-clipped wires, he LED with the cathode of the end of the same LED with the nd see if the LED lights up. If discuss how you can change LED light up. You may need groups. The goal is to make Try the other LED after you The first one. porous cup and return it to solid waste. Use tongs to solid waste container. Do as the ions are hazardous. Calculations Practice Problem 1: Which reaction will occur spontaneously? a) a manganese strip in tin(II) solution or b) a tin strip in manganese(II) solution? Answer: a ■Practice Problem 2: A galvanic cell is constructed using two half-cells: Bi(s) in 0.1 M Bi(NO3)3(aq) and Zn(s) in 0.1 M ZnSO4(aq). The two half cells are connected by a KNO3 salt bridge and two copper wires from the electrodes to a voltmeter. Which one will be the anode: Bi(s) or Zn(s)? What is the standard cell potential? Write the cell diagram (line notation) for this cell. Answer: Zn has the lower Ered so it will be the anode where oxidation takes place. Ecell = Eox + Ered= -(-0.7618 V)+(0.308 V) = 1.069 V. Zn(s) | ZnSO4(aq, 0.1 M) || Bi(NO), (aq, 0.1 M) | Bi(s)
Transcribed Image Text:sing two doubly-clipped wires, he LED with the cathode of the end of the same LED with the nd see if the LED lights up. If discuss how you can change LED light up. You may need groups. The goal is to make Try the other LED after you The first one. porous cup and return it to solid waste. Use tongs to solid waste container. Do as the ions are hazardous. Calculations Practice Problem 1: Which reaction will occur spontaneously? a) a manganese strip in tin(II) solution or b) a tin strip in manganese(II) solution? Answer: a ■Practice Problem 2: A galvanic cell is constructed using two half-cells: Bi(s) in 0.1 M Bi(NO3)3(aq) and Zn(s) in 0.1 M ZnSO4(aq). The two half cells are connected by a KNO3 salt bridge and two copper wires from the electrodes to a voltmeter. Which one will be the anode: Bi(s) or Zn(s)? What is the standard cell potential? Write the cell diagram (line notation) for this cell. Answer: Zn has the lower Ered so it will be the anode where oxidation takes place. Ecell = Eox + Ered= -(-0.7618 V)+(0.308 V) = 1.069 V. Zn(s) | ZnSO4(aq, 0.1 M) || Bi(NO), (aq, 0.1 M) | Bi(s)
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