Calculate Ecell at 298 K for a cell involving Sn and Cu and their ions: Sn(s)...
Calculate Ecell at 298 K for a cell involving Sn and Cu and their ions:
Sn(s) I Sn2+(aq, 0.25M) II Cu2=(aq, 0.10M) I Cu(s)
A) 0.47 V
B) 0.49 V
C) 0.50 V
Homework Answers
Eo (Sn2+/Sn) = -0.14 V
Eo (Cu2+/Cu) = 0.34 V
Eo cell = Eo right - Eo left
= 0.34 - (-0.14)
= 0.48 V
the reaction taking place is:
Sn + Cu2+ ----> Sn2+ + Cu
number of electron, n = 2
use:
Ecell = Eocell - 0.059/2 * log ([Sn2+]/[Cu2+])
= 0.48 - 0.059/2 * log (0.25/0.10)
= 0.48 - 0.059/2 * log (2.5)
= 0.468 V
= 0.47 V (approx)
Answer: A
Add Answer to:
Calculate Ecell at 298 K for a cell involving Sn and
Cu and their ions:
Sn(s)...
1. Calculate Ecell at 298 K for a cell involving Sn and Cu and their ions:...
1. Calculate Ecell at 298 K for a cell involving Sn and Cu and their ions: Sn(s) I Sn2+(aq,.25 m) II Cu2+(aq,.10 m) I Cu(s) a. .47 V b. .49 V c. .50 V Please explain and use equation. Thank you
Calculate the Ecell value at 298 K for the cell based on the reaction: Cu(s) +...
Calculate the Ecell value at 298 K for the cell based on the reaction: Cu(s) + 2Ag+ (aq) → Cu2+ (aq) + 2Ag(s) where [Ag+] = 0.00350 M and [Cu2+] = 7.00x10-4 M. The standard reduction potentials are shown below: Ag+(aq) +e → Ag(s) E° = 0.7996 V Cu2+ (aq) + 2e -→ Cu(s) E° = 0.3419 V 2nd attempt Ecell = V
Calculate the Ecell value at 298 K for the cell based on the reaction: Cu(s) +...
Calculate the Ecell value at 298 K for the cell based on the reaction: Cu(s) + 2Ag+(aq) ----> Cu+2 (aq) + 2Ag(s) where [Ag+] = 0.00275 M and [Cu2+] = 8.75×10-4 M.
Conceptual: Consider a Sn(s)|Sn2+(aq) || Cu2+(aq)|Cu(s) cell. If the Sn2+ concentration is increased, what will happen...
Conceptual: Consider a Sn(s)|Sn2+(aq) || Cu2+(aq)|Cu(s) cell. If the Sn2+ concentration is increased, what will happen to the measured Ecell value? • Calculation, full-reaction Nernst equation: Use the full Nernst equation to calculate Ecell for the conditions described… • Easier: Ni | Ni2+(0.300 M) || Cu2+(0.002 M) | Cu • Harder: Al | Al3+(0.002 M) || Cu2+(4.00 M) | Cu • Calculation, half-reaction Nernst equation: Use the Nernst equation to calculate E at pH 3.00 and [Cl- ] = 0.0035...
20iii please and thanks Long Answer 20. A galvanic (voltaic) cell consists of Ag/Ag* and Sn/Sn2...
20iii please and thanks
Long Answer 20. A galvanic (voltaic) cell consists of Ag/Ag* and Sn/Sn2 half cells at standard conditions with a salt bridge containing KCI. Sn2+ (aq) + 2 e-→ Sn (s) Eo =-0.137 V Ag (aq) e > Ag (s)+0.800 V i. ii. Write a balanced equation for the spontaneous redox reaction and determine Ee Sketch this galvanic cell. Label the anode, the cathode, the direction of flow of electrons in the external circuit and the direction...
The Ksp of CuCl is 1.7×10−7. Find Ecell for the following cell. Cu(s)|CuCl(s)|Cl−(aq)(0.70M)||Cu+(aq)(0.10M)|Cu(s).
The Ksp of CuCl is 1.7×10−7. Find Ecell for the following cell. Cu(s)|CuCl(s)|Cl−(aq)(0.70M)||Cu+(aq)(0.10M)|Cu(s).
*A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [Cu(NH3)4]2+. If a standard hydrogen electrode is used as the cathode, the ce...
*A copper, Cu(s), electrode is immersed in a solution that is
1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II),
[Cu(NH3)4]2+. If a standard hydrogen electrode is used as the
cathode, the cell potential, Ecell, is found to be 0.070 V at 298
K.
A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [NH. If a standard hydrogen electrode is used as the cathode, the cell potential,...
Calculate Ecell for Pb(s) | PbSO4(s) | Pb2+(aq) || Cu2+(aq) | Cu(s) the way it is...
Calculate Ecell for Pb(s) | PbSO4(s) | Pb2+(aq) || Cu2+(aq) | Cu(s) the way it is written here given Cu2+(aq) + 2 e- → Cu(s) E° = +0.337 V PbSO4(s) + 2 e- → Pb(s) + SO42-(aq) E° = -0.356 V
Question 9 What is the cell notation for a voltaic cell that incorporates the following redox...
Question 9 What is the cell notation for a voltaic cell that incorporates the following redox reaction? Cu2+ (aq) + Sn (s) Sn2+ (aq) + Cu(s) O a. Sn (s) | Sn2+ (aq) || Cu (8) | Cu2+ (aq) O b. Sn (s) | Sn2+ (aq) || Cu2+ (aq) | Cu (8) OC. Cu(s) | Cu2+ (aq) || Sn (s) | Sn2+ (aq) Od. Cu2+ (aq)|Cu () || Sn2+ (aq) | Sn (8) O e. Cu (s) | Cu2+ (aq)...
Calculate the potential of the electrochemical cell and determine if it is spontaneous as written at 25 °C Cu(s) Cu2 (0...
Calculate the potential of the electrochemical cell and determine if it is spontaneous as written at 25 °C Cu(s) Cu2 (0.12 M |Fe2 (0.0012 M) Fe(s) E2 =-0.440 V Efe/Fe = 0.339 V Cu2t/Cu Is the electrochemical cell spontaneous or not spontaneous Ecell V as written at 25 °C? not spontaneous spontaneous Calculate the potential of the electrochemical cell and determine if it is spontaneous as written at 25 °C. Pt(s) Sn2(0.0060 M), Sn4+(0.14 M) Fe3+(0.13 M), Fe2+(0.0056 M) Pt(s)...
Calculate the Ecell value at 298 K for the cell based on the reaction: Cu(s) + 2Ag+ (aq) → Cu2+ (aq) + 2Ag(s) where [Ag+] = 0.00350 M and [Cu2+] = 7.00x10-4 M. The standard reduction potentials are shown below: Ag+(aq) +e → Ag(s) E° = 0.7996 V Cu2+ (aq) + 2e -→ Cu(s) E° = 0.3419 V 2nd attempt Ecell = V
20iii please and thanks
Long Answer 20. A galvanic (voltaic) cell consists of Ag/Ag* and Sn/Sn2 half cells at standard conditions with a salt bridge containing KCI. Sn2+ (aq) + 2 e-→ Sn (s) Eo =-0.137 V Ag (aq) e > Ag (s)+0.800 V i. ii. Write a balanced equation for the spontaneous redox reaction and determine Ee Sketch this galvanic cell. Label the anode, the cathode, the direction of flow of electrons in the external circuit and the direction...
*A copper, Cu(s), electrode is immersed in a solution that is
1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II),
[Cu(NH3)4]2+. If a standard hydrogen electrode is used as the
cathode, the cell potential, Ecell, is found to be 0.070 V at 298
K.
A copper, Cu(s), electrode is immersed in a solution that is 1.00 M in ammonia, NH3, and 1.00 M in tetraamminecopper(II), [NH. If a standard hydrogen electrode is used as the cathode, the cell potential,...
Question 9 What is the cell notation for a voltaic cell that incorporates the following redox reaction? Cu2+ (aq) + Sn (s) Sn2+ (aq) + Cu(s) O a. Sn (s) | Sn2+ (aq) || Cu (8) | Cu2+ (aq) O b. Sn (s) | Sn2+ (aq) || Cu2+ (aq) | Cu (8) OC. Cu(s) | Cu2+ (aq) || Sn (s) | Sn2+ (aq) Od. Cu2+ (aq)|Cu () || Sn2+ (aq) | Sn (8) O e. Cu (s) | Cu2+ (aq)...
Calculate the potential of the electrochemical cell and determine if it is spontaneous as written at 25 °C Cu(s) Cu2 (0.12 M |Fe2 (0.0012 M) Fe(s) E2 =-0.440 V Efe/Fe = 0.339 V Cu2t/Cu Is the electrochemical cell spontaneous or not spontaneous Ecell V as written at 25 °C? not spontaneous spontaneous Calculate the potential of the electrochemical cell and determine if it is spontaneous as written at 25 °C. Pt(s) Sn2(0.0060 M), Sn4+(0.14 M) Fe3+(0.13 M), Fe2+(0.0056 M) Pt(s)...
Most questions answered within 3 hours.
-
Brooke and Georgia are neighbors. Each have 40 hours per week.
Brooke needs 5 hours to...
asked 19 minutes ago -
Quantitative Problem: You are holding a
portfolio with the following investments and betas:
Stock
Dollar investment...
asked 16 minutes ago -
Within the costing system of a manufacturing company the
following types of expenses were incurred:
Details...
asked 18 minutes ago -
Data from the Bureau of Labor Statistics’ Consumer Expenditure
Survey show that annual expenditures for cellular...
asked 34 minutes ago -
Consider the following MIPS code:
add $t3,$t2,$t1
lw $t4,0($t3)
sw $t7,0($t3)
add $t6,$t2,$t8
addi $t3,$t5,4
(a)...
asked 30 minutes ago -
Assembly Language:
Is it TRUE or FALSE:
Reduced Instruction Set Computers (RISC) are characterized
by:
Relatively...
asked 34 minutes ago -
A ball is thrown from the origo over a flat horizontal ground.
the x-axis is
horizontal...
asked 37 minutes ago -
Discuss graph representation, Breadth-first search and
Depth-first search. Use examples to highlight pros and
cons.
asked 43 minutes ago -
what are the impacts of droughts in east Africa on the:
1) economy:
2) agriculture:
3)...
asked 45 minutes ago -
Fleas can jump quite high; experiments show that they can reach
an altitude of 120 times...
asked 51 minutes ago -
The rate constant for this first-order reaction is 0.0520 s–1 at
400 °C.
A----> Product
After...
asked 56 minutes ago -
boolean a = ( true && false );
System.out.println( a );
what is the output of...
asked 1 hour ago