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Electrochemistry
Page 6
Questions (1,174)
What energy changes occur in an electrochemical cell when electric current flows from it?
This is what I put down but I am not
4 answers
asked by
helpmeplease
708 views
Calculate the potential of a platinum electrode immersed in a solution that is 0.1996 M in V(OH)4 ^+ . 0.0789 M in VO^2+ and
3 answers
asked by
Alex
1,431 views
Calculate the standard electrode potential for the reaction
Cr2+ +3e=Cr(E=-0.74V Cr3+ +e-=Cr2+(E=-0.41V)
4 answers
asked by
Sheyo
2,449 views
Using a current of 4.75A how many minutes does it takes to plate onto a sculpture 1.50g of CuSO4 solution?
4 answers
asked by
James
1,805 views
How many grams of nickel metal are plated out when a constant current of 15.0 A is passed through aqueous NICl2 for 60.0
3 answers
asked by
Ashley
5,073 views
A galvanic (voltaic) cell consists of an electrode composed of aluminum in a 1.0 M aluminum ion solution and another electrode
3 answers
asked by
Morgan
5,815 views
A current of 5.18 A is pass through a Cr(NO3)2 solution for 1.20 hours. How much chromium is plated out of the solution? __g
I
4 answers
asked by
Katherine
3,852 views
If the cell emf of a Zn-Cu cell is 0.80 V
when the concentration of Zn2+ is 2.0M, what is the concentration of Cu2+?
3 answers
asked by
Emerson
738 views
A voltaic cell is constructed that uses the following half-cell reactions.
Cu+(aq) + e− -> Cu(s) I2(s) + 2 e− -> 2 I−(aq)
3 answers
asked by
DAN
2,571 views
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 24 amps?
All i
3 answers
asked by
moe
1,595 views
Hi
Can someone please help me undersand how to get the answer to this question A 15.0 mL solution of 0.050 mol/L AgNO3 was
3 answers
asked by
James
1,530 views
A voltaic cell is constructed as follows:
Ag(s)|Ag^+,(satd Ag2CrO4)||Ag^+(0.110 M)|Ag(s). What is the value of Ecell? For
4 answers
asked by
Daniel
1,402 views
A current of 45A is passed through a solution of gold salt for 1hour 45 minutes;
Calculate (a)The mass of gold deposited (b)The
4 answers
asked by
Deborah
752 views
A certain quantity of electric charge deposited 9.14 g of Al at the cathode during electrolysis of a solution of Al^+3(aq). What
3 answers
asked by
Wesley
276 views
A voltaic cell, with Ecell = 0.180 V at 298K, is constructed as follows:
Ag(s)|Ag+(satdAg3PO4)||Ag+(0.135 M )|Ag(s) What is the
4 answers
asked by
LC
1,300 views
In the copper-silver cell, why must the Cu2+ and Ag+ solutions be kept in separate in containers?
4 answers
asked by
Maire
983 views
write the oxidation and reduction half-reactions that occur at the anode and cathode, respectively, when MgCl2 liquid is
4 answers
asked by
devon
1,402 views
write a balanced net ionic equation for the overall reaction represented by the cell notation below.
Pt/ Fe2+, Fe3+ // I-/AgI/Ag
4 answers
asked by
Lana
3,648 views
A. Find and list all of the different half- cell combinations. Hint 15 combinations!
1. Copper/ Cu2+ 2. Lead/ Pb2+ 3. Magnesium/
4 answers
asked by
Chloe
891 views
the type of reaction in a voltaic cell is best described as
1.spontaneous oxidation reaction only 2.nonspontaneous oxidation
7 answers
asked by
lisa
4,701 views
A current of 0.80 A was applied to an electrolytic cell containing molten CdCl2 for 2.5 hours. Calculate the mass (in grams) of
5 answers
asked by
Diana
5,482 views
Given a cell based on the spontaneous reaction
2AgCl(s) + Zn(s) ® 2Ag(s) + 2Cl– + Zn2+ If the zinc ion concentration is kept
4 answers
asked by
lucylu
1,617 views
A cell is set up with copper and lead electrodes in contact with CuSO4(aq) and Pb(NO3)2(aq), respectively, at 25˚C. The
3 answers
asked by
Anonymous
2,092 views
Using the standard reduction potentials, calculate the equilibrium constant for each of the following reactions at 298 K.
10Br- +
4 answers
asked by
Anonymous
2,429 views
If a copper sample containing some zinc impurity is to be purified by electrolysis, the anode and the cathode must be which of
5 answers
asked by
John
3,429 views
A current of 0.15A is passed through an aqueous solution of K2PtCl4. How long will it take to deposit 1g of Pt (M=195.1)
3 answers
asked by
Sinachi
130 views
You conduct an experiment where you use a single battery with a charge capacity of 900 mAh to precipitate an unknown metal from
3 answers
asked by
hayley
340 views
The basic reaction occurring in the cell in which Al₂O₃ and aluminum salts are electrolyzed is Al³⁺ + 3 e⁻ → Al(s).
1 answer
asked by
stefani
374 views
Determine the cell potential for Mg(s) + 2 Ag⁺(aq) → Mg²⁺(aq) + 2 Ag(s) where [Ag⁺] = 0.30 M and [Mg²⁺] = 0.020 M
3 answers
asked by
stefani
816 views
How long will it take to deposit all the copper in 300 ml of 0.300(m) copper sulphate solution using current of o
0.750 ampere?
3 answers
asked by
Riya
803 views
Examine the unbalanced electrolytic reaction.
Li+(aq) + Zn(s) → Li(s) + Zn2+(aq) How many electrons are transferred in the
3 answers
asked by
madison
668 views
What is the reaction that would occur in a galvanic cell between solutions of Al3+ and Pb2, where would oxidation and reduction
4 answers
asked by
Alex
754 views
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Cr2 ] = 0.875 M and [Ni2 ] = 0.0100
7 answers
asked by
Julia
9,347 views
Q - Aluminum metal reacts with zinc(II) ion in an aqueous solution by the following half-cell reactions:
Al(s) → Al3+(aq) +
4 answers
asked by
Jessica AP Chemistry
1,630 views
Predict the half-reactions occurring at the anode and the cathode for the electrolysis of aqueous Na2SO4.
3 answers
asked by
Nevaeh
1,661 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
3 answers
asked by
Patrick
973 views
Calculate the potential for: Br2(l) + 2Cl-(aq) → Cl2(g) + 2Br-(aq) Use Eº = -.300 V
when the concentrations of the soluble
3 answers
asked by
moe
1,566 views
a cell is based on the following reaction
Fe(s)+2Fe+3(aq) -----> 3Fe+2 (aq) E cell= 1.18 V. Calculate the concentration of iron
4 answers
asked by
Anonymous
1,381 views
A concentration cell consists of two Sn/Sn2+ half-cells. The cell has a potential of 0.12V at 25 ∘C.
What is the ratio of the
4 answers
asked by
Max
3,565 views
A total charge of 96.5 kC is passed through an electrolytic cell. What mass of silver metal will be produced from a silver
4 answers
asked by
Gabriella
1,263 views
For the cell diagram
Pt(s)|H2(g)|H+(aq)||Cu2+(aq)|Cu(s) Write a balanced equation for the half-reaction at the cathode. The
3 answers
asked by
Jane
2,616 views
Calculate E°cell (in volts) for a fuel cell that employs the reaction between methane gas and oxygen to form carbon dioxide and
3 answers
asked by
Anonymous
3,445 views
12.
What balances charges that may build up as reduction and oxidation occur in a voltaic cell? *the salt bridge one of the
4 answers
asked by
Cassie
2,519 views
Au^3+ + 3e^- ---> Au
Is this oxidation or reduction? Which reactant has been oxidized? Au3+ (aq)+ 3Na(s)--->3Na^+(aq)+Au(s)
6 answers
asked by
kourtney
2,112 views
How do I determine the standard potential for an aluminum half cell?
Can someone please explain to me how I do this? like what
3 answers
asked by
Kim
290 views
A voltaic cell is based on the following two half reactions:
Fe2+(aq) + 2 e¯ ---> Fe(s); Eo = -0.44 V Cu2+(aq) + 2 e¯ --->
3 answers
asked by
Adam
1,218 views
calculate cell potential at 25C for:
3Fe3+(aq) + AL(s)= 3Fe2+(aq)+ Al3+ (aq) if Fe3+ = 0.300 M, Fe2+ = 0.150M Al3+ = 0.300M. The
3 answers
asked by
Helen
2,251 views
A voltaic cell is contructed in which a copper wire is placed in a 1.0 M Cu(NO3)2 solution and a strip of gold i placed in a 1.0
3 answers
asked by
Mark
2,289 views
A zinc-copper battery is constructed as follows:
Zn | Zn+2(0.10 M) || Cu+2 (2.50 M)| Cu The mass of each electrode is 200.0 g.
3 answers
asked by
Stephanie
1,901 views
Calculate the standard cell potential for each of the following electrochemical cells.
Ni^+2(aq)+Mg(s)--->Ni(s)+Mg^+2(aq) I used
4 answers
asked by
Eddie
2,824 views
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