18) Calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25 °C. (The equation is balanced.) 2 K(s) + I2(s) → 2 K+ (aq) + 2 I¯(aq) A) +3.47 V B) +5.32 V A) Al = 1, F2 = 1 B) Al = 2, F2 = 6 C) Al = 2, F2 = 1 D) Al = 3, F2 = 2 E) Al = 2, F2 = 3 C) -5.32 V D) +6.40 V 19) Balance the following redox reaction. What are the coefficients in front of Al and F2 in the balanced reaction? Al(s) + F2(g) → A13+ (aq) + F- (aq) E) +1.85 V

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### Electrochemical Cell and Redox Reaction Exercises

**Question 18**  
Calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.)

\[ 2 \text{K(s)} + \text{I}_2\text{(s)} \rightarrow 2 \text{K}^+\text{(aq)} + 2 \text{I}^-\text{(aq)} \]

Options:  
A) +3.47 V  
B) +5.32 V  
C) -5.32 V  
D) +6.40 V  
E) +1.85 V  

**Question 19**  
Balance the following redox reaction. What are the coefficients in front of Al and F\(_2\) in the balanced reaction?

\[ \text{Al(s)} + \text{F}_2\text{(g)} \rightarrow \text{Al}^{3+}\text{(aq)} + \text{F}^-\text{(aq)} \]

Options:  
A) Al = 1, F\(_2\) = 1  
B) Al = 2, F\(_2\) = 6  
C) Al = 2, F\(_2\) = 1  
D) Al = 3, F\(_2\) = 2  
E) Al = 2, F\(_2\) = 3
Transcribed Image Text:### Electrochemical Cell and Redox Reaction Exercises **Question 18** Calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.) \[ 2 \text{K(s)} + \text{I}_2\text{(s)} \rightarrow 2 \text{K}^+\text{(aq)} + 2 \text{I}^-\text{(aq)} \] Options: A) +3.47 V B) +5.32 V C) -5.32 V D) +6.40 V E) +1.85 V **Question 19** Balance the following redox reaction. What are the coefficients in front of Al and F\(_2\) in the balanced reaction? \[ \text{Al(s)} + \text{F}_2\text{(g)} \rightarrow \text{Al}^{3+}\text{(aq)} + \text{F}^-\text{(aq)} \] Options: A) Al = 1, F\(_2\) = 1 B) Al = 2, F\(_2\) = 6 C) Al = 2, F\(_2\) = 1 D) Al = 3, F\(_2\) = 2 E) Al = 2, F\(_2\) = 3
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