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For the Reaction, 2 Cr2+(aq)+ Cl2(g) 2 Cr3+(aq)+ 2 \rarr

Question 45

Multiple Choice

For the reaction, 2 Cr2+(aq) + Cl2(g)  For the reaction, 2 Cr<sup>2+</sup>(aq) + Cl<sub>2</sub>(g)    2 Cr<sup>3+</sup>(aq) + 2 Cl<sup>-</sup>(aq) , the value of E°<sub>cell</sub> is1.78 V. What is the value of E°<sub>cell</sub> for the following reaction? Cr<sup>3+</sup>(aq) + Cl<sup>-</sup>(aq)  \rarr Cr<sup>2+</sup>(aq) + ½<sup> </sup>Cl<sub>2</sub>(g)  A) -1.78 V B) +0.89 V C) +1.78 V D) -0.89 V E) -3.56 V 2 Cr3+(aq) + 2 Cl-(aq) , the value of E°cell is1.78 V. What is the value of E°cell for the following reaction?
Cr3+(aq) + Cl-(aq) \rarr Cr2+(aq) + ½ Cl2(g)


A) -1.78 V
B) +0.89 V
C) +1.78 V
D) -0.89 V
E) -3.56 V

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