Question

Consider the following standard reduction potentials. Reduction Half-Reaction E° (volts) Cr$^{3+}$(aq) + 3e$^-$ $\rightarrow$ Cr(s) - 0.74 Cd$^{2+}$(aq) + 2e$^-$ $\rightarrow$ Cd(s) - 0.40 Ni$^{2+}$(aq) + 2e$^-$ $\rightarrow$ Ni(s) - 0.23 Which reaction A-D will generate a spontaneous potential, as written from left to right

Name: consider the following standard reduction potentials reduction half reaction e volts cr3aq 3e rightarrow crs 074 cd2aq 2e rightarrow cds 040 ni2aq 2e rightarrow nis 023 which reaction a d wi 50056
Uploaded: 2022-04-16T18:04:14-08:00
Duration: 2 min 48 s
Channel: David Collins
Description: consider the following standard reduction potentials reduction half reaction e volts cr3aq 3e rightarrow crs 074 cd2aq 2e rightarrow cds 040 ni2aq 2e rightarrow nis 023 which reaction a d wi 50056

          Consider the following standard reduction potentials.
Reduction Half-Reaction	E° (volts)
Cr$^{3+}$(aq) + 3e$^-$ $\rightarrow$ Cr(s)	- 0.74
Cd$^{2+}$(aq) + 2e$^-$ $\rightarrow$ Cd(s)	- 0.40
Ni$^{2+}$(aq) + 2e$^-$ $\rightarrow$ Ni(s)	- 0.23
Which reaction A-D will generate a spontaneous potential, as written from left to right

consider the following standard reduction potentials reduction half reaction e volts cr3aq 3e rightarrow crs 074 cd2aq 2e rightarrow cds 040 ni2aq 2e rightarrow nis 023 which reaction a d wi 50056

Added by Lee P.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert David Collins

04/16/2022

Step 1

The cell potential is calculated as $E_{cell} = E_{cathode} - E_{anode}$, where $E_{cathode}$ is the reduction potential of the cathode (reduction half-reaction) and $E_{anode}$ is the reduction potential of the anode (oxidation half-reaction). For a spontaneous Show more…

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Consider the following standard reduction potentials. Reduction Half-Reaction E° (volts) Cr$^{3+}$(aq) + 3e$^-$ $\rightarrow$ Cr(s) - 0.74 Cd$^{2+}$(aq) + 2e$^-$ $\rightarrow$ Cd(s) - 0.40 Ni$^{2+}$(aq) + 2e$^-$ $\rightarrow$ Ni(s) - 0.23 Which reaction A-D will generate a spontaneous potential, as written from left to right