Chemistry Homework Help

Browse Homework Solutions

240 solutions

Cell Potential

Q. Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.) Pb(s) + Br2(l) → Pb2+(aq) + 2 Br−(aq) Pb2+(aq) + 2 e− → Pb(s) E° = -0.13 V Br2(l) + 2 e− → 2 Br−(aq) E° = +1.07 V

Solved • Apr 18, 2020

Cell Potential

Q. Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.) Sn(s) + 2 Ag+(aq) → Sn2+(aq) + 2 Ag(s) Sn2+(aq) + 2 e− → Sn(s) E° = -0.14 Ag+(aq) + e− → Ag(s). E° = +0.80 V

Solved • Apr 18, 2020

Cell Potential

Q. Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. 4 F−(aq) + Mn2+(aq) → 2F2(g) + Mn(s) F2(g) + 2e− → 2 F−(aq) E° = +2.87 V Mn2+(aq) + 2 e− → Mn(s) +2.87 V E° = -1.18 V

Solved • Apr 18, 2020

Cell Potential

Q. Which of the following pairs of reactants will result in a spontaneous reaction at 25°C.

Solved • Apr 15, 2020

Cell Potential

Q. Use the standard half-cell potentials listed to calculate the standard cell potential for the following balanced reaction occurring in an electrochemical cell at 25°C. A.+2.04 V. D.−1.36 V. B.−2.04 V. E.+1.36 V. C.+2.72 V

Solved • Apr 15, 2020

Cell Potential

Q. Use the standard half-cell potentials listed to calculate the standard cell potential for the following balanced reaction occurring in an electrochemical cell at 25°C. A.−1.40 V D.+1.32 V. B.−1.32 V. E.+4.16 V. C.+1.40 V

Solved • Apr 15, 2020

Cell Potential

Q. Which of the following statements regarding reduction potentials is not true? A. Higher reduction potentials are associated with stronger reducing agents. B. As reduction potential increases, the ease of reduction increases. C.A substance with a higher reduction potential will oxidize a substance with a lower reduction potential. D.Metals such as sodium and potassium are strong reducing agents. E.Standard reduction potentials are measured relative to the reduction of H+(aq)to H2(g).

Solved • Apr 15, 2020