Electrolytic – Page 3 – Unspillable.com

Which one of the reactions must be carried out in an electrolytic cell rather than in an electrochemical cell?

A.Zn2+ + Ca—Zn + Ca2+ B.Al3+ + 3Br- —Al + (3/2)Br2 C.2Al + 3Fe2+— 2Al3+ + 3Fe D.H2 + I2(s)—2H+ + 2I-

Why is the anode positive in the electrolytic cell and negative in the voltaic cell?

I’m having a difficult time figuring this out since oxidation always occurs at the anode, and this would be where electrons are produced. Is it this: in voltaic cells, the reaction is spontaneous and does not require a current. So oxidation of the element etc. occurs on its own, and electrons are produced. Because electrons […]

Cheap substitute for Nafion-type ion-exchange membane for use in electrolytic membrane cell?

I have a custom-built electrolytic membrane cell that uses a standard sandwich of Nafion and other materials as the membrane. Recently, the membrane was damaged, and is unusable. So, until I can properly replace it, what common materials (excluding asbestos or mercury) can function as a working, temporary ion-permeable membrane that will prevent gas mixing […]

Electrolytic cell question !!! help if u can?

Question 20 5 L volumes of 1.0 M KNO3(aq), 1.0 M AgNO3(aq) and 1.0 M Cu(NO3)2(aq) are placed in three separate electrolytic cells using platinum electrodes. Over a period of 30 minutes, 96 500 coulombs of electric charge are passed through each solution. Which of the following alternatives correctly indicates the amount, in mole, of […]

what is needed to create chemical changes in an electrolytic cell?

a) gravity b) high temperatures c) an electrode reaction d) a nuclear reaction

Zinc production in electrolytic cell?

In electrolytic cell, normally the metal in anode is oxidised to give out electrons and cathode takes electrons to from metal. In zinc production, the anode is lead ( Pb) and the cathode is aluminium (Al) and the eletrolyte is zinc sulfate ( ZnSO4) My question is why in the anode, the water is oxidised […]

electrolytic cell horror story!?

i recently constucted an electrolytic cell based on: Zn(s) + Cu +2 —> Zn +2 + Cu(s). the voltmeter read 1 volt, not the expected 1.10 the standard cell potential (Eo). What in the world could account for this? copper electrode larger than silver one? Zn+2 solution more concentrated? solutions in half-cells have different concentrations? […]

how do i distinguish between an electrolytic cell based on the nature of the reaction and electric current?

thanks for your help

Which of the following is produced at the cathode of an electrolytic cell containing a 1.0 M solution of sodiu

Which of the following is produced at the cathode of an electrolytic cell containing a 1.0 M solution of sodium chloride? A.oxygen gas B.hydrogen gas C.chlorine gas D.sodium metal

in an electrolytic cell, a Cl- ion would be attracted to the?

(1)positive electrode and oxidized (2)positive electrode and reduced (3)negative electrode and oxidized (4)negative electrode and reduced

How long will it take to produce 78 g of Al metal by the reduction of Al3+ in an electrolytic cell with a..?

current of 2.0 A..

Gibbs Free Energy Positive In Electrolytic Cell Verses Galvanic. Quick Question?

Greetings, I have written down in my notes that Delta G (Gibbs free energy) is Positive in an electrolytic cell, whereas it is negative in a galvanic cell. Is this mostly true in most cases? What confuses me is that there is an equation Delta G =nFE(cell) that determines the spontaneously of a reaction in […]

what are the main differences between the galvanic cell and the electrolytic cell?

Electrolytic cell problem?

Two electrolytic cells are connected together in series. The first contains molten sodium chloride NaCl(l) and the second contains aqueous copper (II) sulphate. All the electrodes are made of platinum. Calculate the total volume of gas produced (measured at STP) when a steady current of .50 amps is passed through the two cells for 2 […]

Tag: Electrolytic