Homework Answers
The volatage can't be zero in real.
A galvanic cell consisting of Co l Co+2 and Ni l Ni+2 is given. The volatage depends upon the concentration if we increase the concentration of electrolytes, there will be more free electrons and therefore more current and more voltage. But at equilibrium when the concentration of both electrolyte is same the electron and proton will neutralize each other and theoretical voltage will be zero.
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Galvanic cell consists of Co Co2standard electrode and Ni Ni electrode. At what concentration of nickel electrolyte...
A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II)...
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 galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II)...
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(lll) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 degree C. Standard reduction potentials can be found here.
A galvanic cell is assembled from one half cell with a nickel electrode immersed in Ni...
A galvanic cell is assembled from one half cell with a nickel electrode immersed in Ni 2+ aqueous solutions in one beaker where [Ni2+] = 1.2 M coupled to a second half cell with a chromium electrode immersed in a Cr3+ aqueous solution to give Ecell = +0.55 V at 25 °C. 3Ni2+(aq) + 2Cr(s) → 3Ni(s) + 2Cr3+(aq) Eϴ cell = +0.50 V Calculate the concentration of the chromium ions [Cr3+] in solution. (A) 1.9 x10^–1 M (B) 6.7...
What electrolyte can be used in the salt bridge of a galvanic cell that has nickel...
What electrolyte can be used in the salt bridge of a galvanic cell that has nickel {Ni(NO3)2} and zinc {Zn(NO₃)₂} electrodes, and why? What will be the ion flow in the solutions?
1. A galvanic cell was composed from the following redox chemistry: Li electrode in a 1M LiCl electrolyte solution, Pb electrode in a IM Pb(NOsh electrolyte solution. The standard half-cell reduction...
1. A galvanic cell was composed from the following redox chemistry: Li electrode in a 1M LiCl electrolyte solution, Pb electrode in a IM Pb(NOsh electrolyte solution. The standard half-cell reduction potentials are given below: Volts 3.05 0.13 Li+(aq) Li(s) 1e + → Write a balanced chemical equation representing the redox chemistry for this galvanic cell. Remember the reaction needs to be spontaneous. a.
1. A galvanic cell was composed from the following redox chemistry: Li electrode in a 1M...
13. (10 marks) One half of an electrochemical cell consists of a pure Ni electrode in...
13. (10 marks) One half of an electrochemical cell consists of a pure Ni electrode in a solution conatining Ni2+ ions; the other half is a Cd electrode in a Cd2+ solution. Both cells are at 25 ℃. The two half cells are connected with an electrical wire. (a) Under standard conditions, explain which half cell will be anodic? Write the full electrochemical reaction. (b) If the cell voltage output is measured to be 0.12 V when [Ni2+] = 0.3...
A galvanic cell consists of a iron electrode in 1 M Fe(NO3)2 and a copper electrode...
A galvanic cell consists of a iron electrode in 1 M Fe(NO3)2 and a copper electrode in 1 M Cu(NO3)2. What is the equilibrium constant for this reaction at 25oC?
Question 11 of 16 > A galvanic (voltaic) cell consists of an electrode composed of cadmium...
Question 11 of 16 > A galvanic (voltaic) cell consists of an electrode composed of cadmium in a 1.0 M cadmium ion solution and a second electrode composed of cobalt in a 1.0 M cobalt(II) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Use this list of standard reduction potentials. V Ecel =
A cell is set up with a nickel electrode and a nickel sulfate solution in the...
A cell is set up with a nickel electrode and a nickel sulfate solution in the left hand compartment and a cobalt electrode and a cobalt nitrate solution in the right hand compartment. a) If both solutions are 1.0 M, what will the cell potential be and which electrode will be the cathode? b) If the concentration of cobalt nitrate stays at 1.0 M, to what value would you have to lower the nickel ion concentration to cause the cell...
An electrochemical cell is constructed such that on one side a pure nickel electrode is in...
An electrochemical cell is constructed such that on one side a pure nickel electrode is in contact with a solution containing Ni2+ ions at a concentration of 5*10-3 M. The other cell half consists of a pure Fe electrode that is immersed in a solution of Fe2+ ions having a concentration of 0.3 M. At what temperature will the potential between the two electrodes be +0.140 V?
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(lll) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 degree C. Standard reduction potentials can be found here.
1. A galvanic cell was composed from the following redox chemistry: Li electrode in a 1M LiCl electrolyte solution, Pb electrode in a IM Pb(NOsh electrolyte solution. The standard half-cell reduction potentials are given below: Volts 3.05 0.13 Li+(aq) Li(s) 1e + → Write a balanced chemical equation representing the redox chemistry for this galvanic cell. Remember the reaction needs to be spontaneous. a.
1. A galvanic cell was composed from the following redox chemistry: Li electrode in a 1M...
Question 11 of 16 > A galvanic (voltaic) cell consists of an electrode composed of cadmium in a 1.0 M cadmium ion solution and a second electrode composed of cobalt in a 1.0 M cobalt(II) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Use this list of standard reduction potentials. V Ecel =
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