Go Figure 20.9 0.76 V Voltmeter NO3 Na anode H2(g) Cathode half-ce (standard NO3

Question

Go Figure 20.9 0.76 V Voltmeter NO3 Na anode H2(g) Cathode half-ce (standard NO3 hydrogen Anode 2+ electrode, SHE) Zn NO3 half-cell 2+ Zn(s aq) 2 e A voltaic cell using a standard hydrogen electrode (SHE). The anode half-cell is zn metal in a zn (NO3)2 (aq) solution, and the cathode half-cell is the SHE in a HNO3 (ag) solution. Part A Why do Na ons migrate into the cathode half-cell as the cell reaction proceeds? Drag the terms on the left to the appropriate blanks on the right to complete the sentences. is reduced to 1. As the cell operates in the c half-cell. As electrical balance is depleted, the positive ions are drawn into the half-cell to maintain in the solution. overal concentration

Explanation / Answer

part A) to maintain electrical nutrality

1) As the cell operates, H+ is reduced H2 in the cathode half cell. As Zn is depleted, the positive Na+ ions are drawn in to the half cell to maintain electrical balance in the solution.

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