A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2Cr³+ (aq) + 3 Ca(s) → 2Cr(s) + 3Ca²+ (aq) Suppose the cell is prepared with 6.35 M Cr³+ in one half-cell and 0.492 M Ca²+ in the other half. Calculate the cell voltage under these conditions. Cr³+ (aq) + 3e → Cr(s) Ered = -0.744 V Ca2+ (aq) + 2e →→ Ca(s) Ered= -2.868 V The standard cell potential (E°) for this galvanic cell is +2.124 There are 6 galvanic cell. Under these conditions, the reaction quotient is 0.00295 volatage is 2.15 moles of electrons transferred during to operate this V. In order to increase the cell voltage for this cell ✔ [ Select] V. and the cell It is impossible to change the voltage Not enough information Q>1 Q< 1

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Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
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A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction:
2Cr³+ (aq) + 3 Ca(s) → 2Cr(s) + 3Ca²+ (aq)
Suppose the cell is prepared with 6.35 M Cr³+ in one half-cell and 0.492 M Ca²+ in the other half.
Calculate the cell voltage under these conditions.
Cr³+ (aq) + 3e → Cr(s)
Ca²+ (aq) + 2e →→ Ca(s)
There are 6
galvanic cell.
Er
The standard cell potential (E°) for this galvanic cell is +2.124
red = -0.744 V
Ered= -2.868 V
volatage is 2.15
Under these conditions, the reaction quotient is
moles of electrons transferred during to operate this
V V.
0.00295
In order to increase the cell voltage for this cell ✔ [ Select ]
V.
and the cell
It is impossible to change the voltage
Not enough information
Q>1
Q<1
3
Transcribed Image Text:A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2Cr³+ (aq) + 3 Ca(s) → 2Cr(s) + 3Ca²+ (aq) Suppose the cell is prepared with 6.35 M Cr³+ in one half-cell and 0.492 M Ca²+ in the other half. Calculate the cell voltage under these conditions. Cr³+ (aq) + 3e → Cr(s) Ca²+ (aq) + 2e →→ Ca(s) There are 6 galvanic cell. Er The standard cell potential (E°) for this galvanic cell is +2.124 red = -0.744 V Ered= -2.868 V volatage is 2.15 Under these conditions, the reaction quotient is moles of electrons transferred during to operate this V V. 0.00295 In order to increase the cell voltage for this cell ✔ [ Select ] V. and the cell It is impossible to change the voltage Not enough information Q>1 Q<1 3
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