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Electrochemistry
Page 8
Questions (1,173)
A copper electrode weighs 35.42 g before the electrolysis of a CuSO4(aq) solution and weighs
36.69 g after the electrolysis has
3 answers
asked by
Anonymous
1,390 views
How many moles of mercury will be produced by electrolyzing 1.0M Hg(NO3)2 solution with a current 2.00A for 2 hours.
3 answers
asked by
Neha
1,880 views
Electrochemistry
In the electrolysis of aqueous copper(II) bromine CuBr2(aq, 1.00 g of copper is deposited at the cathode. How
4 answers
asked by
sarah simpson
1,748 views
Which electrode (anode or cathode) is designated as positive in an electrolytic cell?
anode**** cathode both neither
4 answers
asked by
Nikkie
908 views
The first electrochemical cell was invented by ____.
Michael Faraday Alessandro Volta*** James Maxwell Benjamin Franklin
3 answers
asked by
Nikkie
1,021 views
Today I began an electroplating lab between a copper strip and a coin in electrolyte solution with a battery. I am struggling to
3 answers
asked by
kat
1,097 views
A voltaic cell consists of a standard hydrogen electrode in one half-cell and a Cu/Cu2+ half-cell. Calculate [Cu2+] when E cell
3 answers
asked by
Dalton
2,635 views
Given the following half-reactions and their standard reduction potentials,
Ni2+ + 2e− Ni E° = -0.25 V 2H+ + 2e− H2 E° =
3 answers
asked by
Anonymous
1,615 views
The polarogram for 20ml solution that was 3.65 x 10^-3 M in cadmium (Cd2+) gave a wave for that ion with a diffusion current of
3 answers
asked by
Adeola
781 views
How did the change in concentration of the copper ions affect the cell potential? Is this change in agreement (qualitatively)
3 answers
asked by
Anonymous
685 views
A concentration cell consists of two Sn/Sn2+ electrodes. The electrolyte in compartment A is 0.16 M Sn(NO3)2. The electrolyte in
3 answers
asked by
Carter
1,482 views
Calculate the activity of KI, x, in the following electrochemical cell if
the potential is +0.294 V Ag | AgCl(s),NaCl(aq,0.1)
3 answers
asked by
Jessica
807 views
A current of 4.00 A is passed through a solution of AgNO3 for 1.00 hr. What mass of silver is deposited at the cathode? (In
4 answers
asked by
Jon
1,371 views
How long (in minutes) must a 5.40 A current be passed through an aqueous solution of zinc nitrate to deposit 87.5 g Zn?
2 answers
asked by
Morgan
907 views
For the electrolysis of molten potassium bromide:
(a) write the equation for the reaction at cathode. (b) write the equation for
5 answers
asked by
Shane
3,319 views
Give the half equations at the anode and cathode for a dilute hydrochloric acid,dilute copper chloride solution and the
4 answers
asked by
Eddie
1,317 views
Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode
3 answers
asked by
TP
1,356 views
The cell shown above is a concentration cell. Both cells contain a copper solution and have copper electrodes. The only driving
4 answers
asked by
bekah
1,731 views
Given:
Al3+(aq) + 3e– --> Al(s); E° = –1.66 V I2(s) + 2e– --> 2I–(aq); E° = 0.54 V What is ∆G° for the following
3 answers
asked by
Katie
1,225 views
Calculate the standard cell potential for each of the electrochemical cells?
What would the answers be to something like this? If
3 answers
asked by
John
741 views
1. 3 Sn2+ (aq) + 2 Al(s) --> 2 Al3+ (aq) + 3 Sn(s). What is the voltage for this cell?
2. What is the voltage for the cell in
4 answers
asked by
Bryce
1,881 views
A solution is 1.0M in AgNO3 and Fe(NO3)2.in the electrolysis of this solution using inert electrodes, the voltage is gradually
4 answers
asked by
chemistinprogress
611 views
a)the E0 for the reactions 2HOCl + 2H+ + 2e- → Cl2 + 2H20 and Cl2 + 2e- → Cl- are 1.63 and 1.396 volts respectively. Write
4 answers
asked by
Dave
583 views
given the overall cell reaction Zn(s) + 2Ag(aq) --> Zn2+ (aq) + 2 Ag(aq) which will occur when the cell operates
4 answers
asked by
BUDDY
1,345 views
A galvanic (voltaic) cell consists of an electrode composed of magnesium in a 1.0 M magnesium ion solution and another electrode
3 answers
asked by
Anon
1,686 views
Pt, (H2) 1atm | CH3COOH 0.1 M, CH3COONa 0.15M || NaBr 0.1M, AgBr(S) | Ag
write the cathodic, anodic and final reactions.
2 answers
asked by
Emmanuel
666 views
CALCULATE DELTA G FOR REACTION
Cu2(aq)+2Ag(s) gives Cu(s)+2Ag(aq) Given, E0 Ag+/Ag=0.80 v and E0 Cu2+/Cu=0.34 V
3 answers
asked by
RAJI
1,364 views
an aqueous solution of pdcl2 is electrolyzed for 27.4 seconds during this time 0.1064 g of Pd is deposited on the cathode.
3 answers
asked by
eric
664 views
suppose 250 mL of a .433 M solution of CuCl2 is electrolyzed. how long will a current of 75A have to run in order to reduce the
10 answers
asked by
Jane
1,974 views
Calculate the cell potential for the following reaction as written at 51 degrees C, given that [Zn2+] = 0.837 M and [Sn2+] =
3 answers
asked by
Katherine
1,254 views
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr
3+ and a gold electrode in a solution that is 1.0 M in Au 3+ .
3 answers
asked by
megan
1,017 views
Why are molten metal chlorides used as electrolytes rather than using other molten salts? Thanks for ur helps alot.
4 answers
asked by
Chemo
686 views
A galvanic cell is based on the following half-reactions:
Fe2+ + 2e- --> Fe(s) E= –0.440 V 2H+ + 2e- --> H2(g) E= 0.000 V where
4 answers
asked by
Kaili
1,903 views
If one electrode in a galvanic cell is made of zinc (Zn) and one is made of silver (Ag), which metal would be the cathode and
4 answers
asked by
princess
2,785 views
2 Ag+(aq) + Fe(s) --> 2 Ag(s) + Fe2+(aq)
Which electrode is the anode, and which is the cathode. and In which directions do the
3 answers
asked by
Rachel
1,535 views
Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that
2 answers
asked by
Jay
518 views
What substance is produced at the cathode during the electrolysis of molten calcium bromide, CaBr2? Assume standard conditions.
3 answers
asked by
sam
3,148 views
If 2.00 liters of 0.580 M CuSO4 solution is electrolyzed by passing 1.70 amps through the solution for 2.00 hr using inert
2 answers
asked by
Mango
1,038 views
"A voltaic cell is constructed by immersing a strip of sillver metal in a 1.0 MAgNO3 solution and a strip of cadmium metal in a
4 answers
asked by
todd
1,603 views
If I have a Galvanic cell of Nickel and Gold where Nickel is (Ni->Ni^+2 + 2e-) and the oxidation of gold is (Ag^+->Ag + e-) then
2 answers
asked by
Mo
846 views
Faraday¡¯s Law of Electrolysis
• Practice Problem. • What is the oxidation state of the osmium atom in an unknown salt if
3 answers
asked by
Jin
835 views
Discuss the spontaneity of an electrochemical reaction in terms of its standard emf (E¨¬cell)
4 answers
asked by
Jin
2,309 views
The full inoic equation for an electrochemical cell is Br2 + Zn yields 2Br- + Zn2+. write the half reaction that occurs at the
3 answers
asked by
Jessica
1,668 views
Given:
Cr3+(aq) + 3e¨C  Cr(s); E¡ã = ¨C0.74 V Pb2+(aq) + 2e¨C  Pb(s); E¡ã = ¨C0.13 V What is the standard cell
3 answers
asked by
Anonymous
1,028 views
consider the electrolysis of molten AlCl3 what must the current be in amps if you need to obtain 25.0 grams of aluminum in 5.00
3 answers
asked by
Sanaa
573 views
How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous Cu2+ ions to produce 3.00
4 answers
asked by
Bab aba
2,278 views
How does the voltage of a galvanic cell change, when there is a precipitate in the solution?
3 answers
asked by
LALA
653 views
What mass of Al can be deposited by the passage of a constant current of 5.00 A through a Al(NO3)2 solution of 2.00 hours?
My
4 answers
asked by
Chem
1,665 views
Determine the potential (in V) of an electrochemical cell using a gold electrode and gold (III) [0.0243 M] solution in
6 answers
asked by
Joe
1,206 views
Calulate E naught cell for the reaction below
5 Cd(s) + 2 MnO4^-(aq) + 16H+(aq)+ 2 Mn2+(aq) + 8 HxsO(l) The oxidation anode must
3 answers
asked by
Steve
673 views
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