Calculate the emf of the cell cd/cd2+
WebJul 6, 2024 · The standard reaction potentials of Ag + /Ag and Cd 2+ /Cd are +0.80 volt and -0.40 volt, respectively. (i) Give the cell representation., (ii) What is the standard cell emf, E°? (iii) What will be the emf of the cell if the concentration of Cd 2+ is 0.1 M and Ag + is 0.2 M.? (iv) Will the cell work spontaneously for the condition given in ... WebThe equation of the electrochemical cell is then given by Sn Cd Sn Cd2 2+ ++ → + With two half-reactions: Sn e Sn2+ −+ →2 (Cathode, Sn is reduced following the gain of two electrons) Cd Cd e→ +2+ −2 (Anode, Cd is oxidized following the loss of two electrons) Emf of the cell is given by the difference in the reduction potential: 0.136 ...
Calculate the emf of the cell cd/cd2+
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WebSolution for For the electrochemical cell Zn (s) Zn2+ (aq) Cd2+ (aq) Cd (s), (a) deduce the cell reaction, (b) calculate the standard emf, ... deduce the cell reaction, (b) … WebCHEM1901/3 Answers to Problem Sheet 10 1. (a) Al(s) Al3+(aq) Sn2+(aq) Sn(s) The half reactions and potentials are: Sn2+(aq) + 2e- Sn(s) E° = 0.14 V Al3+(aq) + 3e- Al(s) E° = 1.68 V The Al(s) Al3+(aq) half cell is on the left so this is the oxidation half cell so the half cell reaction is reversed. The Sn2+ Sn(s) half cell is on the right so is the reduction half …
WebEnt Coton plugs Cu+ soj ZnSO4 solution CuSO4 solution. Question: Be sure to answer all parts. Referring to the arrangement in the figure, calculate the [Cu2*/ [Zn2+ ratio at which the following reaction is spontaneous at 25°C. Cu (s) +Zn2* (aq) -» Cu2^ (aq) + Zn (s) Copper cathode Zinc anode Salt bridge x 10-38 er your answer in scientific ... WebJul 11, 2016 · The function of the salt bridge is to maintain electrical neutrality in each half cell. As zinc ions go into solution #sf(NO_3^-)# ions flood in to the half cell. As copper(II) ions leave the solution in the other 1/2 cell, #sf(K^+)# ions flood in. To find the emf of the cell, subtract the least +ve #sf(E^@)# value from the most +ve:
WebCell reaction will be Cd+2H+ → Cd2++H2 (hence n = 2)E°cell = E°right - E°leftE°cell = 0-(-0.403 = + 0.403 V)Ecell = E°cell + 2.303nFlog H+2 CdpH2Cd2+ = 0.403+8.314 × 298 × … WebDec 11, 2024 · Calculate the potential of the cell at 298 K : Cd/Cd 2+ (0.1M) H + (0.2M)/Pt, H 2 (0.5 atm) Given Eº for Cd 2+ /Cd = - 0.403 V, R = 8.314 J-1 mol-1, F = 96500 C mol-1
Web13. fReduction potentials and emf of the reaction. • Example: – Ag+ + 1 e- → Ag E0 = + 0.7996 V. • The oxidant of the redox pair (Ag+) shows higher tendency to become reduced than H+, versus SHE the reaction proceeds as written. •Ag electrode behaves as cathode versus SHE. – Cd2+ + 2 e- → Cd E0 = - 0.402 V.
WebMay 9, 2024 · Figure \(\PageIndex{3}\): Determining a Standard Electrode Potential Using a Standard Hydrogen Electrode. The voltmeter shows that the standard cell potential of a … beauxbengal catsWebIn summary, Er incorporation in CdSe nanocrystals provokes drastic changes in the Cd 1-x Er x Se lattice structure, depending on the level of Er doping. For low x values, Er 3+ ions are sequentially incorporated as follows: (i) replacement of Cd 2+ ions, (ii) to interstitial sites, and (iii) to NCs surface. In the first (i) case, the unit cell ... dio skin gta saWebQuestion: Consider the following reaction: Cd(s) + Fe2+(aq) > Cd2+(aq) + Fe(s) E (Fe2+/Fe) = -0.4400 V, E (Cd2+/Cd) = -0.4000 V Calculate the emf for this reaction at 298 K if [Fe2+] = 0.70 M and [Cd2+] = 0.010 M. Will the reaction occur spontaneously at these conditions? Yes No cannot predict dio skull saWebJul 19, 2024 · Calculate the emf of the cell Cd Cd 2+ (0.10M)1 H + (0.20M) Pt, H 2 (0.5 atm) [Given: EºCd 2+ /Cd = – 0.403 V, ... Calculate the potential of the cell at 298 K : Cd/Cd2+ (0.1M) H+ (0.2M)/Pt, H2 … beauyou meWebExample: Find the value of the equilibrium constant at 25 o C for the cell reaction for the following electrochemical cell: Cu Cu 2+ (1 M) Ag + (1 M) Ag. (The solution for the determination of the E o cell and the number … dio sketchWebFeb 5, 2024 · Standard oxidation potential of Zn is +0.763V and the standard oxidation of potential of Cd is 0.403V. Since, the standard oxidation potential of Zn is more than that of Cd, Zn electrode will act as anode (where oxidation takes place) and Cd will act as cathode (where reduction takes place). beauyasha dateWebMar 2, 2024 · To calculate the of the reaction, we use the equation: Putting values in above equation, we get: To calculate the EMF of the cell, we use the Nernst equation, which is: where, = electrode potential of the cell = ? = standard electrode potential of the cell = -0.04 V. n = number of electrons exchanged = 2. Putting values in above equation, we get: dio skin minecraft