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Electrochemistry
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Questions (1,173)
Sodium can be extracted by heating naturally occurring salt until it is molten. An electrochemical process is then used to
5 answers
asked by
Hermela
2,609 views
Al3+ is reduced to Al(s) at an electrode. If a current of 2.75 ampere is passed for 36 hours, what mass of aluminum is deposited
4 answers
asked by
YULCHANG
4,664 views
What will be the effect on the cell potential when a small amount of silver nitrate solution is added to half-cell A?
2 answers
asked by
Promise
133 views
Give a reason why platinum is used as the electrode in half-cell A
2 answers
asked by
Promise
112 views
Cd/Cd2+//H+/H2/Pt
Write the oxidation and reductionhalf reactions. Sketch a possible deisgn cell. I am unclear on the Pt portion
4 answers
asked by
Kelsey
2,740 views
What is the coefficient of H∗ after the following half-reaction is balanced? HSO4−(aq)⟶S2−(aq) Question 34 4 pts In a
2 answers
asked anonymously
96 views
Construction of zn-cu galvanic cell
1 answer
asked by
Fuad Faji Jemal
56 views
Calculate the volume of H2 gas (25 Celsius and 760 mm Hg) that will collect at the cathode when an aqueous solution of Na2SO4 is
6 answers
asked by
polo
1,386 views
The standard potential for the following galvanic cell is 1.72V :
Be(s)|Be2+(aq)||Pb2+(aq)|Pb(s) The standard reduction potential
3 answers
asked by
Brian
2,376 views
Using a table of standard electrode potentials (such as the one in your textbook), calculate the
standard cell potential for a
5 answers
asked by
Tyler
1,584 views
Using a table of standard electrode potentials (as in Appendix M of your text), calculate the standard cell potential, Eo, for:
2 answers
asked by
Maho
535 views
Using the Nernst equation, determine the diluted concentration for both cells. Show your work.
Sn| Sn2+(diluted)||Cu2+|Cu Zn|
3 answers
asked by
Anonymous
1,262 views
Using standard reduction potentials, calculate the standard E¡Æcell, emf, for each of the following reactions. State if each
4 answers
asked by
Anna
1,559 views
Calculate the cell potential of voltaic cells that contain the following pairs of half-cells.
a)A half-cell containing both HgCl2
2 answers
asked by
sma
604 views
Calculate the electrode potential of a copper half-call containing 0.05M Cu(NO3).
E^0 Cu2+/Cu = 0.337 V College Chemistry -
4 answers
asked by
L**
588 views
An electrochemical cell consists of a nickel metal electrode immersed in a solution with [Ni2+] = 1.0 M separated by a porous
4 answers
asked by
Hanna
3,021 views
Calculate the current that must be passed into a solution of aluminum salt for 1hr 30 min in other to deposit 1.5g of aluminum
2 answers
asked by
Eniola
107 views
Silver chloride is an insoluble salt. What will be the effect on the cell potential when a small amount of silver nitrate
2 answers
asked by
Promise
135 views
Calculate the initial emfa of this cell. Cl2|cl-|pt||cr3+|cr
2 answers
asked by
Promise
113 views
Write down the half-reaction that takes place at the cathode
2 answers
asked by
Promise
130 views
Calculate The current that must be passed into a solution of aluminum salt for 1hr 30 minutes in order to deposit 1.5g of
7 answers
asked anonymously
141 views
How many amperes is required to deposit 1.5 g of aluminum from an aluminum salt solution in 1.5 hours? molar mass Al = 27.
7 answers
asked by
Bob
77 views
For the galvanic cell ,Pt |Br2||Fe2+, Fe3+| Pt
a).write equation for the reaction at the left- hand and right - hand electrode
2 answers
asked by
Lakydo Wepson
98 views
A voltaic cell is constructed using Al and Al3+ in one half- cell and Ag with Ag+ in the other half-cell.
A).Write the half-cell
4 answers
asked by
Lakydo Wepson
145 views
Salt bridge
1 answer
asked by
Fuad Faji Jemal
51 views
Voltaic(galvanic) cells
1 answer
asked by
Fuad Faji Jemal
57 views
How long, in seconds, would it take to deposit 10.5 g of copper onto an electrode from a solution of Cu2+ if a current of 2.00 A
4 answers
asked by
Jesse
1,558 views
Ksp
The solutions at the two Pb electrodes of a concentration cell were prepared as follows: Cell A: A mixture of 1.00 mL of
4 answers
asked by
Mahtab
1,118 views
Use the following information to answer this question:
Cu+(aq) + e- → Cu(s) E° = 0.521V Cu2+ (aq) + e- → Cu+ (aq) E° =
3 answers
asked by
Ana
533 views
What is the anode and cathode of this problem?
A chemist wishes to determine the concentration of CrO4-2 ions electrochemically.
2 answers
asked by
Andrew
570 views
using standard potentials given in the appendices calculate the standard cell potentials and the equilibrium constants for the
7 answers
asked by
Kader
3,095 views
Using the Nernst equation, determine the diluted concentration for both cells. Show your work.
Given that [Cu2+] and [Zn2+] are
4 answers
asked by
Anonymous
1,398 views
Calculate the concentration polarization for the electrolysis of 0.9 M AgNO3 with silver electrode at 18 °C and ia = ia = 0.1
2 answers
asked anonymously
76 views
Gallium is obtained by electrolysis of its chlorides. Write the anode and cathode electrode equations which occur if you were to
4 answers
asked by
simon fredly
182 views
Q - An electrochemical reaction occurs between an unknown element and zinc. The half-cell reaction for the zinc is:
Zn(s) →
4 answers
asked by
Jessica AP Chemistry
950 views
Calculate the electrode potential of a copper half-call containing 0.05M Cu(NO3).
E^0 Cu2+/Cu = 0.337 V
4 answers
asked by
L**
566 views
If a current of 1.5 A is passed for 4.00 hours through a molten tin salt and 13.3g of tin is deposited, what is the oxidation
2 answers
asked anonymously
64 views
Calculate the mass of copper deposited by the electrolysis of copper (II) sulphate solution placed in series with a silver
1 answer
asked by
Fuad Faji
109 views
0.2 moles of electrons are passed through three electrolytic cells in series that
contain silver ions, zinc ions and iron (III)
1 answer
asked by
Fuad Faji
207 views
Calculate the mass of copper and volume of oxygen (at 25°C and 760 mmHg)
that would be produced by passing a current of 0.5 A
1 answer
asked by
Fuad Faji
95 views
Calculate Ecell for the following electrochemical cell:
Ni(s) | Ni2+(aq) || Hg22+(aq) | Hg(l) | Pt(s)
1 answer
asked anonymously
94 views
Consider a voltaic cell based on the following cell reaction:
Ni(s) + At2(s) —> Ni2+(aq) + 2At– (aq) Given that the standard
1 answer
asked anonymously
97 views
Calculate the cell voltage for the following reaction:
Cu2+ (0.010 M) + H2(1 atm) —> Cu(s) + 2H+ (pH = 7.0)
1 answer
asked anonymously
62 views
In a wet type of voltaic cell, what is electrolyte?
7 answers
asked by
Linda Emory
130 views
In the voltaic pile, the cathode-half reaction was the reduction of hydrogen ions to form hydrogen gas. Where did these ions
1 answer
asked by
Kaz
59 views
Chromium can be electroplated from an aqueous solution containing sulfuric acid and chromic acid, H2CrO4. What current is
5 answers
asked by
Sarah H
2,027 views
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 C. The initial concentrations of Pb+2 and Cu+2 are
1 answer
asked by
Samm
1,078 views
Calculate the cell potential, at 25 C, based upon the overall reaction
Zn2+(aq) + 2 Fe2+(aq) -> Zn(s) + 2 Fe3+(aq) if [Zn2+] =
4 answers
asked by
JuYoung
2,288 views
The following electrochemical cell can be used to calculate the formation constant Kf for a metal and EDTA. The cell has a
4 answers
asked by
Anonymous
2,088 views
At 25 °C, you conduct a titration of 15.00 mL of a 0.0260 M AgNO3 solution with a 0.0130 M NaI solution within the following
4 answers
asked by
Dasha
3,318 views
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