Question

1. Calculate the equilibrium constant, K, for the reaction in the Galvanic Pb-Cu cell. (Report your...

1. Calculate the equilibrium constant, K, for the reaction in the Galvanic Pb-Cu cell. (Report your answer in scientific notation to three significant figures. Use * for the multiplication sign and ^ to designate the exponent.) Cu+ (aq) + Pb (s) → Cu (s) + Pb2+ (aq) Eocell = 0.647 V

K =

2. For the reaction Mg (s) + Ni2+ (aq) →→ Mg2+ (aq) + Ni (s),    Eocell = 2.629 V.  

Calculate the cell potential at T = 50.0oC when [Ni2+] = 1.25 M, [Mg2+] = 0.567 M

E cell = ___ V

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
If a reaction has a positive Eo value, is K < 1 or > 1? (Only...
If a reaction has a positive Eo value, is K < 1 or > 1? (Only write < or > in the box provided.) K _ 1 If a reaction has a positive Eo value, isΔ ΔGo < 0 or > 0? (Only write < or > in the box provided.) ΔGo _ 0 Calculate DGo for the reaction in the Galvanic Pb-Cu cell. 2Cu+ (aq) + Pb (s) →→ 2Cu (s) + Pb2+ (aq)          Eocell = 0.647 V...
A galvanic cell is based on the following half-reactions at 281 K: Cu+ + e- →...
A galvanic cell is based on the following half-reactions at 281 K: Cu+ + e- → Cu     Eo = 0.521 V H2O2 (aq) + 2 H+ + 2 e- → 2 H2O     Eo = 1.78 V What will the potential of this cell be when [Cu+] = 0.567 M, [H+] = 0.00333 M, and [H2O2] = 0.861 M? Enon
The following reactions take place in a galvanic cell: (i) Cu2+(aq)+ Ni (s)→ Cu(s) + Ni2+(aq)...
The following reactions take place in a galvanic cell: (i) Cu2+(aq)+ Ni (s)→ Cu(s) + Ni2+(aq) (ii) 2Ag+ (aq) +H2 (g) → 2Ag(s) +2H+ (aq) (iii) Cl2 (g) + Sn2+ (aq) → Sn4+ (aq) + 2Cl- (aq) (a) For each of the above spontaneous cell reactions, write the electrochemical cell using standard cell notation. (b) Use the standard reduction potentials below to evaluate EƟcell for the overall cell reaction taking place in (iii): Cl2(g) + 2e- → 2Cl- (aq) E...
Calculate the equilibrium constant for each of the reactions at 25 ?C. Standard Electrode Potentials at...
Calculate the equilibrium constant for each of the reactions at 25 ?C. Standard Electrode Potentials at 25 ?C Reduction Half-Reaction E?(V) Pb2+(aq)+2e? ?Pb(s) -0.13 Mg2+(aq)+2e? ?Mg(s) -2.37 Br2(l)+2e? ?2Br?(aq) 1.09 Cl2(g)+2e? ?2Cl?(aq) 1.36 MnO2(s)+4H+(aq)+2e? ?Mn2+(aq)+2H2O(l) 1.21 Cu2+(aq)+2e? ?Cu(s) 0.16 Part A: Pb2+(aq)+Mg(s)?Pb(s)+Mg2+(aq) Express your answer using three significant figures. Part B: Br2(l)+2Cl?(aq)?2Br?(aq)+Cl2(g) Express your answer using two significant figures. Part C: MnO2(s)+4H+(aq)+Cu(s)?Mn2+(aq)+2H2O(l)+Cu2+(aq) Express your answer using two significant figures.
1) For a galvanic cell that uses the following two half-reactions, Cr2O72-(aq) + 14 H+(aq) +...
1) For a galvanic cell that uses the following two half-reactions, Cr2O72-(aq) + 14 H+(aq) + 6 e- → 2 Cr3+(aq) + 7 H2O(l) Pb(s) → Pb2+(aq) + 2 e how many moles of Pb(s) are oxidized by one mole of Cr2O72-? A) 6 B) 2 C) 1 D) 3 2) What species is oxidized in the reaction: CuSO4(aq) + Mg(s) →MgSO4(aq) + Cu(s)? A) MgSO4 (aq) B ) M g (s) C ) C u S O 4 (aq)...
Constants The following values may be useful when solving this tutorial. Constant Value E∘Cu 0.337 V...
Constants The following values may be useful when solving this tutorial. Constant Value E∘Cu 0.337 V E∘Ni -0.257 V R 8.314 J⋅mol−1⋅K−1 F 96,485 C/mol T 298 K Part A In the activity, click on the E∘cell and Keq quantities to observe how they are related. Use this relation to calculate Keq for the following redox reaction that occurs in an electrochemical cell having two electrodes: a cathode and an anode. The two half-reactions that occur in the cell are...
Use the tabulated half-cell potentials to calculate the equilibrium constant (K) for the following balanced redox...
Use the tabulated half-cell potentials to calculate the equilibrium constant (K) for the following balanced redox reaction at 25°C. Pb 2+(aq) + Cu(s) → Pb(s) + Cu2+(aq)
1. What is the calculated value of the cell potential at 298K for an electrochemical cell...
1. What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Pb2+ concentration is 4.09×10-4 M and the Mg2+ concentration is 1.03 M ? Pb2+(aq) + Mg(s) ---> Pb(s) + Mg2+(aq) Answer: ___V The cell reaction as written above is spontaneous for the concentrations given____. (true or false) (From the table of standard reduction potentials: ) Pb2+(aq) + 2 e- --> Pb(s) -0.126 Mg2+(aq) + 2 e- --> Mg(s)...
6. For each reaction listed, determine its standard cell potential at 250C and whether the reaction...
6. For each reaction listed, determine its standard cell potential at 250C and whether the reaction is spontaneous at standard conditions. You will need to use Appendix L. (a) Mg(s) + Ni2+(aq) ---> Mg2+(aq) + Ni(s) (b) 3Fe2+(aq) + Au3+(aq) ---> 3Fe3+(aq) + Au(s) (c) Cu(s) l Cu2+(aq) II Au3+(aq) I Au(s) 7. Determine the standard free energy change (DG0) in kJ for the reactions in question 6. (a) (b) (c)
Calculate ΔG o (kJ/mol) and equilibrium constant (K) for the following electrochemical cell: Cd(s) | Cd2+(...
Calculate ΔG o (kJ/mol) and equilibrium constant (K) for the following electrochemical cell: Cd(s) | Cd2+( aq) || Ni2+(aq)| Ni(s)