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Electrochemistry
Page 9
Questions (1,173)
What change in coulombs, is required to deposit 0.301 g Cu(s) from a solution of Cu^2+(aq)
3 answers
asked by
Steve
562 views
The following electrochemical cell has the potential of +0.617V at 25 degrees Celsius
Pt ! H2(g, 1.00 atm) ! H+ (aq, 1.00M !!
2 answers
asked by
Steve
606 views
Given the following two half-reactions, determine which overall reaction is spontaneous and calculate its standard cell
4 answers
asked by
Steve
1,231 views
Calculate [Fe^2]+ when the cell reaction reaches equilibrium?
A voltaic cell is constructed based on the following reaction and
4 answers
asked by
Sandra
1,132 views
the quantity of electricity required to reduce 12.3g of nitrobenzene to aniline assuming 50% current efficiency is
1. 115800 C 2.
7 answers
asked by
hriday
5,469 views
Why is the standard reduction potential E, for the standard hydrogen electrode 0.00V?
Please help me explain the reason why to
3 answers
asked by
kristine
1,038 views
The reduction potentials for the species involved in an electrochemical cell are as follows:
M+ + e– --> M is 0.30 V J+ + e–
5 answers
asked by
so confused
610 views
Sulfuric acid/ Lead Battery:
-the electrodes for the battery are composed of Pb(s), PbO2, and/or PbSO4. What are the half
4 answers
asked by
sara
779 views
Chromium metal can be plated onto an object from an acidic solution of dichromate ions. What average current is required to
3 answers
asked by
Rishikesh
895 views
constant electric current flows between two electrochemical cells connected in series for 3.25 seconds. one contains a solution
3 answers
asked anonymously
37 views
1. What is the voltage for: Cu2+ + Zn(s) → Cu(s) + Zn2+ at 298 K if [Cu2+] = 0.15 M and [Zn2+] = 4.0 M? E°cell = 1.20 V.
2. A
4 answers
asked by
aldrea vince
536 views
Consider the galvanic cell constructed from the following metals and their corresponding metal ions:
E degrees (V) M^3+^ + 3e^-^
3 answers
asked by
Ian
840 views
I am given a question where I have to state which combination of electrodes will result in the greatest voltage and which will
4 answers
asked by
Sara
1,276 views
How long does a current of 0•3A need to pass through a solution of copper (ii) sulphate to deposit 0•8g of copper
2 answers
asked anonymously
54 views
what is a graph of a weak electrolyte
2 answers
asked anonymously
24 views
The half-reactions for a Daneill cell are given below:
Pb→ Pb2++ 2e– E°(ox) = +0.13 V Cu2++ 2e– → Cu E°(red) = +0.34 V
1 answer
asked by
rosa
272 views
. The E0 for the reaction Pb3(AsO4)2 (s) + 6e- ⇆ 3Pb(s) + 2AsO43- is -0.475 V. Calculate the solubility product constant for
1 answer
asked by
dilara gezgin
273 views
1. Assuming these half reactions make a galvanic cell, what is the cell potential in volts.
𝐹2(𝑔)
4 answers
asked by
Kyle
289 views
Can someone help with this. I'm confused on how to step this up.
1. If the concentration of fluoride anion and aluminum cation
7 answers
asked by
Abby
336 views
Electrochemistry
Which balanced chemical equation, for an overall reaction, corresponds to this cell notation? PbSo4(s) |
1 answer
asked by
Robert Belford
241 views
Calculate the pH of the cathode compartment for the following reaction given ℰcell = 3.01 V when [Cr3+ ] = 0.15 M, [Al3+ ] =
1 answer
asked by
eli
309 views
Calculate the standard cell emf for galvanic
cells for the cell reaction 3 Zn(s) + 2 Bi3+(aq) → 3 Zn2+(aq) + 2 Bi(s) Answer in
2 answers
asked by
tyler
602 views
Is it possible to separate platinum, palladium, and iridium as chloro-complex ions from an HCl solution through electrolysis if
2 answers
asked by
Jeff
580 views
Given the measured cell potential, E cell is -0.3603 V at 25°C in the following cell, calculate the H+ concentration
Pt(s)|H2(g,
1 answer
asked by
Mo
1,045 views
Suppose a galvanic cell contains one nickel electrode and one copper electrode. At 25°C, nickel has a negative reduction
2 answers
asked by
Damien
996 views
What is the equilibrium constant for the
reaction taking place at room temperature (T = 25◦C) in the battery Zn(s)| Zn2+(aq)||
1 answer
asked by
MQ
797 views
By what things the positive pole of dry battery is made??
3 answers
asked by
Manir uddin sikdar
413 views
If 8A pass for 2minutes at the cathode(where the following reaction takes place, Ag+ + e- --->Ag) how many grams of silver metal
1 answer
asked by
Kelvin
348 views
ADDIS ABABA UNIVERSITY
ADDIS ABABA INSTITUTE OF TECHNOLOGY SCHOOL OF CHEMICAL AND BIO ENGINEERING Applied Electrochemistry
2 answers
asked by
tamir chernet
719 views
based on standard reduction potentials which metals would
i) inhibit rusting ii)promote rusting My general statement is: > If the
2 answers
asked by
Stacy
545 views
If I have zinc@ -.76 & copper @.340. Put 9 in a series, what would my voltage be?
1 answer
asked by
Rich
314 views
Check if im right please.
a. oxidation occurs at my anode ____ ** Voltaic Cell b. You can use standard reduction potential table
2 answers
asked by
Stacy
601 views
Is Al—> Al3 + 3e- oxidation or reduction
3 answers
asked anonymously
24 views
Q - An electrochemical reaction occurs between an unknown element and zinc. The half-cell reaction for the zinc is:
Zn(s) →
1 answer
asked by
Ned
893 views
write the cell notation of Zn°(s)|Zn 2+ (aq),Cl − (aq)|AgCl(s)|Ag°(s)
1 answer
asked by
sushma
363 views
Under standard conditions of 1 atm and 298.15K, the half-cell reduction potential E,zero for the anode in a voltaic cell is
2 answers
asked by
Brooke
643 views
The voltage of an electrochemical cell depends on the redox reaction occurring in the cell. Given a redox reaction below:
Zn(s) +
1 answer
asked by
bliss
469 views
(1) The same quantity of electricity is passed through 2voltameters connected in series, one copper voltmeter with copper
2 answers
asked by
dannystein
553 views
chemistry: is the formula to be used @ 25 degree c is E=Eo -(0.059/n(log a)) or Eo+(0.059/n)(log a)
1 answer
asked by
olagunju
370 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
4 answers
asked by
Patrick
494 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
2 answers
asked by
Patrick
612 views
3 Sn^2+ (aq) + 2 Al (s) <--> 2 Al3+(aq) + 3 Sn(s). What is the voltage for this cell?
What is the voltage for the cell if
1 answer
asked by
Carl
824 views
For each of the following pairs of half-cells,
determine the overall electrochemical reaction that proceeds spontaneously. Na+ |
4 answers
asked by
Ken
1,247 views
zinc electrode is placed in a solution of lead nitrate.write a balanced equation
1 answer
asked by
mphukhe
408 views
The diffusion current for a standard is 1 x 10^-4M solution of hydroquinone is 17.5 microamperes. An unknown solution of
1 answer
asked by
Adeola
373 views
explane the term calomal eletrode
1 answer
asked by
aashutosh
346 views
Suppose the Cu electrode was replaced by an Al electrode. In order for this new cell to be a galvanic cell, which electrode
2 answers
asked by
Anonymous
522 views
Bismuth can be electrolytically reduced according to the following reaction:
BiO(+)+ 2H(+)+ 3e¯ >>> Bi + H2O How many grams of
2 answers
asked by
Anonymous
636 views
Calculate the pH of the cathode compartment for the following reaction given Ecell = 3.01 V when [Cr3+] = 0.15 M, [Al3+] = 0.30
5 answers
asked by
Anonymous
1,160 views
Calculate the pH of the cathode compartment for the following reaction given Ecell = 3.01 V when [Cr3+] = 0.15 M, [Al3+] = 0.30
1 answer
asked by
Anonymous
895 views
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