In a voltaic cell made of a nickel, cardboard soaked in a lemon juice and salt solution, and a penny, which coin acts as the anode and which is the cathode?
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In a voltaic cell made of a nickel, cardboard soaked in a lemon juice and salt...
Consider the voltaic cell diagram shown below. Your cell is made up of a Magnesium and a Mercury electrode. Match the letters to the correct answers. Mg2+(aq)+2e --> Mg(s) Ered= -2.37V Hg22+ (aq)+2e --> 2Hg(s) Ered=0.80V [Choose ] CI- Salt Bridge Hg Anode Na+ MgNO3 Oxidation number Hg2NO3 Hg Cathode Mg(NO3)2 Hg2(NO3)2 Salt flow Mg Anode Mg Cathode Electron flow
QUESTION 10 Which of the following statements concerning a voltaic cell is FALSE? A voltaic cell uses an oxidation-reduction reaction to produce electrical energy. O The oxidation half reaction occurs at the cathode. O The cell consists of two half cells. O At the anode a substance will lose electrons. O The anode and the cathode are separated by a salt bridge.
A voltaic cell is made with a salt bridge of NaNO3 and Fe(NO3)2 for the anode cell and AgNO3 for the cathode cell. a. When constructing the cell, what impact odes the volume of solution in each of the beakers have on the cell potential? b. If you were to add deionized water to the solution that contains Ag+(aq), would this have any effect on the cell voltage? If so, Explain how the cell voltage would change and why. c....
A voltaic cell is constructed in which the anode is a Ag Ag half cell and the cathode is a CI Cl2 half cell. The half-cell compartments are connected by a salt bridge. (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: the Ag Ag electrode. |the CIICl2 electrode In...
In a copper-zinc voltaic cell, one half-cell consists of a ZnZn electrode inserted in a solution of zinc sulfate and the other half-cell consists of a CuCu electrode inserted in a copper sulfate solution. These two half-cells are separated by a salt bridge. At the zinc electrode (anode), ZnZn metal undergoes oxidation by losing two electrons and enters the solution as Zn2+Zn2+ ions. The oxidation half-cell reaction that takes place at the anode is Zn(s)→Zn2+(aq)+2e−Zn(s)→Zn2+(aq)+2e− The CuCu ions undergo reduction...
What is the purpose of a "salt bridge" in a voltaic cell? a) It allows electrons to flow from the anode through the external circuit to the cathode. b) It is the electrode at which oxidation occurs. c) It is the electrode at which reduction occurs. d) It allows ions to migrate and maintain the electric neutrality in the half cells.
3. You are a voltaic (galvanic) cell: iven samples of AICl, and AuCls along with the following materials to construct - water - platinum wire - Aly and Aue) electrodes - a salt bridge made of an appropriate material - two beakers - a voltmeter a. Draw a diagram of the cell you would construct with these materials, labeling each component. b. Write the balanced chemical equation for the spontaneous cell reaction, assuming both AICh and AuCl3 dissociate completely in...
A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of gold in a 1.0 M gold(III) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.
A voltaic electrochemical cell is constructed in which the anode is a Alt|Al half cell and the cathode is a Co2+|Co half cell. The half-cell compartments are connected by a salt bridge Write the anode reaction Write the cathode reaction. Write the net cell reaction the Al3 the Co2+Co In the external circuit, electrons migrate Al electrode electrode the Co2Co compartment the Al3Al In the salt bridge, anions migrate compartment +
Draw the voltaic cell (labeling the anode, cathode, and salt bridge) for the reaction between Ag/Ag and Zn/Zn"7 including the half reactions for each cell and calculated cell potential. 3.