Galvanic Cell Question (1 Viewer)

[rand_althor]

If you had a galvanic cell with the following:

• Anode: Zn_(s)
• Analyte: Zn(NO₃)_2(aq)
• Cathode: Fe_(s)
• Cathylate: Fe(NO₃)_3(aq)

Which of the following reduction reactions occurs?:

1. Fe³⁺ + e^- -> Fe²⁺ only
2. Fe³⁺ + e^- -> Fe²⁺ followed by Fe²⁺ + 2e^- -> Fe_(s)

 

[rand_althor]

Anyone?

 

[snowflakeptical]

If you had a galvanic cell with the following:

• Anode: Zn_(s)
• Analyte: Zn(NO₃)_2(aq)
• Cathode: Fe_(s)
• Cathylate: Fe(NO₃)_3(aq)

Which of the following reduction reactions occurs?:

1. Fe³⁺ + e^- -> Fe²⁺ only
2. Fe³⁺ + e^- -> Fe²⁺ followed by Fe²⁺ + 2e^- -> Fe_(s)

wouldn't it be Fe³⁺+3e⁺-->Fe(s)?
As eventually Fe³⁺ will become Fe, why separate it?

 

[rand_althor]

If that's the case, would I just add the voltages to get the voltage of that reaction?

 

[Drsoccerball]

If that's the case, would I just add the voltages to get the voltage of that reaction?

It would be the second one
EDIT: first one*

 

[snowflakeptical]

If that's the case, would I just add the voltages to get the voltage of that reaction?

whaa, that is weird

we need more opinions on this!!

 

[snowflakeptical]

I'm reading some examples and they only have Fe³⁺ + e^---->Fe²⁺