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Electrochemistry
Page 3
Questions (1,188)
Write down the half-reaction that takes place at the cathode
2 answers
asked by
Promise
138 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
153 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
84 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
111 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
150 views
Salt bridge
1 answer
asked by
Fuad Faji Jemal
54 views
Voltaic(galvanic) cells
1 answer
asked by
Fuad Faji Jemal
61 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
1,568 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
1,128 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
542 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
579 views
using standard potentials given in the appendices calculate the standard cell potentials and the equilibrium constants for the
7 answers
asked by
Kader
3,102 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
1,405 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
79 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
963 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**
568 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
71 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
112 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
214 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
99 views
Calculate Ecell for the following electrochemical cell:
Ni(s) | Ni2+(aq) || Hg22+(aq) | Hg(l) | Pt(s)
1 answer
asked anonymously
100 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
110 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
68 views
In a wet type of voltaic cell, what is electrolyte?
7 answers
asked by
Linda Emory
134 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
68 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
2,043 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
1,085 views
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 C. The initial concentrations of Ni2+ and Zn2+ are
4 answers
asked by
Nevaeh
6,126 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
2,296 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
3,324 views
Two half cells in a galvanic cell consist of one iron electroide in a solution of iron sulphate and a silver electrode in a
2 answers
asked by
Kelsey
652 views
In a wet type of voltaic cell, what is the electrolyte?
a. a bridge made of salt b. a copper strip c. an acidic liquid d. a
5 answers
asked by
Jenny
1,787 views
determine the number of electrons required to deposit 6.4g of copper from an aqueous solution of copper II sulphate
4 answers
asked by
kaye
900 views
Explain the reaction that would occur in a galvanic cell between solutions of Al3+ and Pb2+. Identify the oxidation and
4 answers
asked by
Callie
2,323 views
I have a lot of questions actually.
it's electrochemistry (which is obviously a bunch of fun) 2 electrodes Cr(s)/Cr3+ and
7 answers
asked by
raaawr
866 views
Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M Ti3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find
2 answers
asked by
James
1,021 views
What is produced at each electrode in the electrolysis of NaBr(aq) and AgF(aq)?
4 answers
asked by
H
3,689 views
Calculate the standard cell emf for galvanic cells with the cell reaction
2H2(g) + O2(g)→2H2O(ℓ)in acidic solution. Answer in
4 answers
asked by
Gabriella
3,095 views
What is the equilibrium constant for the
reaction taking place at room temperature (T = 25◦C) in the battery Zn(s)| Zn2+(aq)||
4 answers
asked by
John
1,558 views
A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of
5 answers
asked by
Patrick
3,881 views
A voltaic cell consists of Mn/Mn2+ and Cd/Cd2+ half-cells with the following initial concentrations: [Mn2+] = 0.090 M; [Cd2+] =
4 answers
asked by
stumped
7,092 views
Given the table below predict the numerical value of the standard cell potential for the reaction:
2 Cr(s) + 3 Cu2+(aq) 2
4 answers
asked by
Anya
3,547 views
Consider the cell
Pb(s)| PbSO4(s)| SO4(2-) (aq , 0.60 M)|| H+(aq , 0.70 M)| H2(g , 192.5 kPa)| Pt. If E◦ for the cell is 0.36 V
3 answers
asked by
AllysonR99
794 views
Which of the following processes uses a galvanic cell?
A. Electroplating silver metal onto a teapot B. Purification of metals
4 answers
asked by
Morgan
3,118 views
The reaction
2Na+ + 2Cl− ! 2Na + Cl2 is indicative of ? cell; the sign of the anode is ? ; and ? forms at the cathode. 1. an
5 answers
asked by
cheri
2,901 views
Current is applied to an aqueous solution of calcium sulfide. Multiple choice help please??!
What is produced at the cathode? A)
6 answers
asked by
Sam
5,696 views
Find the emf for the cell
Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I got .548733V Is this
6 answers
asked by
brian
1,090 views
Find the equilibrium constant for the reaction Cr(s) + Zn2+(aq)→Cr2+(aq) + Zn(s) if the standard cell emf is −0.76 V at the
4 answers
asked by
Gabriella
3,827 views
What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are
5 answers
asked by
Anna
1,200 views
Using the following data
1. CU3+ + 2e- ---> Cu+ E1= 1.28V 2. CU2+ + e- ---> Cu+ E2= 0.15V 3. Cu2+ + 2e- ----> Cu(s) E3= 0.34V 3.
5 answers
asked by
anna
8,778 views
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