A student was asked to answer the following: Calculate the time (in sec) that is required to plate out 0.702g of aluminum when a current of 2.10A is applied to 5.0L of a 0.75M AI(NO3)3 solution. The molar mass of copper is 26.98g/mol. The student set up the following calculation: mol mol 2.10A* *5.0L * 96485C 0.75 mol 0.702g Identify twO Ro spocific

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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A student was asked to answer the following: Calculate the time (in sec) that is required to plate out 0.702g of aluminum when a current of
2.10A is applied to 5.0L of a 0.75M Al(NO3)3 solution. The molar mass of copper is 26.98g/mol.
The student set up the following calculation:
mol
L
mol
2.10A*
*5.0L
96485C
0.75 mol 0.702g
Identify two errors. Be specific.
Transcribed Image Text:A student was asked to answer the following: Calculate the time (in sec) that is required to plate out 0.702g of aluminum when a current of 2.10A is applied to 5.0L of a 0.75M Al(NO3)3 solution. The molar mass of copper is 26.98g/mol. The student set up the following calculation: mol L mol 2.10A* *5.0L 96485C 0.75 mol 0.702g Identify two errors. Be specific.
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