A galvanic cell was constructed at 310 K from a nickel electrode placed in an aqueous...

  

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A galvanic cell was constructed at 310 K from a nickel electrode placed in an aqueous NiSO4 solution and a chromium electrode placed man aqueous solution containing Cr3+ at an unknown concentration. The standard reduction potential of Cr3+ and Ni2+ have been experimentally determined as -0.737 V and -0.247 V respectively. i. Complete the following sentence by entering numbers (e.g. 1) in the boxes and selecting the correct entry from the drop down list: [1 mark] In this cell, chromium atoms/ions transfer electrons (No answer given) nickel atoms/ions. ii. Calculate the standard cell potential. Give your answer to three significant figures e.g. 0.123. Type only the numerical value of your answer, do not put units in the answer boxes. V iii. Calculate the AG for the electrochemical cell under standard conditions. Give your answer to three significant figures e.g. 1.23E+05 or 12300 Type only the numerical value of your answer, do not put units in the answer boxes. [2 marks] J/mol iv. Calculate the equilibrium constant for the electrochemical cell under standard conditions. Give your answer to three significant figures e.g. 1.23E+15. Type only the numerical value of your answer, do not put units in the answer boxes. [2 marks] A galvanic cell was constructed at 310 K from a nickel electrode placed in an aqueous NiSO4 solution and a chromium electrode placed man aqueous solution containing Cr3+ at an unknown concentration. The standard reduction potential of Cr3+ and Ni2+ have been experimentally determined as -0.737 V and -0.247 V respectively. i. Complete the following sentence by entering numbers (e.g. 1) in the boxes and selecting the correct entry from the drop down list: [1 mark] In this cell, chromium atoms/ions transfer electrons (No answer given) nickel atoms/ions. ii. Calculate the standard cell potential. Give your answer to three significant figures e.g. 0.123. Type only the numerical value of your answer, do not put units in the answer boxes. V iii. Calculate the AG for the electrochemical cell under standard conditions. Give your answer to three significant figures e.g. 1.23E+05 or 12300 Type only the numerical value of your answer, do not put units in the answer boxes. [2 marks] J/mol iv. Calculate the equilibrium constant for the electrochemical cell under standard conditions. Give your answer to three significant figures e.g. 1.23E+15. Type only the numerical value of your answer, do not put units in the answer boxes. [2 marks]