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Be sure to answer all parts. Calculate the standard potential of the cell consisting of the...
The cell potential of this cell is observed to be
0.445v Calculate the pH for the H+/H2 half cell
please explain the use of the half reaction in terms of the signs,
positive and negative in the equations.
The cell potential of this electrochemical cell is observed to be 0.445 v. Calculate the pH in for the H+H2 half cell Zn (s)| Zn2+ (2.5 M) || H*(??)[H2 (g. 4.5 atm)|Pt(s)
The standard cell potential (E°) of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn (s) + 2H+ (aq) → Zn2+ (aq) + H2 (g) With PH2 = 1.0 atm and [Zn2+] = 1.0 M, the cell potential is 0.42 V. The concentration of H+ in the cathode compartment is ________ M. please explain the math Thank you
Be sure to answer all parts. Calculate the standard emf of a cell that uses the Mg/Mg2+ and Cu/Cu2+ half-cell reaction at 25°C. E______ = V Write the equation for the cell reaction that occurs under standard-state conditions. Be sure to include the physical state of each species in the reaction.
What is the standard cell potential of a cell created using a cadmium electrode in 0.45 M Cd(NO3)2(aq) and a graphite electrode in an aqueous solution that is 0.45 M in both Fe2+ and Fe3+? 0.38 V 1.95 V 1.94 V 1.17 V 1.18 V What is the standard cell potential of a cell which utilizes the following reaction: Zn (s) + Ni2+ (aq) → Ni (s) + Zn2+ (aq) All solutions are 1.0 M and the reaction occurs at...
The voltage of the following cell at 25 ̊C is + 0.65V. The standard reduction potential for Zn is -0.76 V. Zn | Zn2+ (0.60M) || H+ (aq.), H2 (g,1.0 atm) | Pt What is the pH of the solution at the cathode?
Be sure to answer all parts. Consider a galvanic cell composed of the SHE and a half-cell using the following reaction: Agt(aq) + e + Ag(s) (a) Calculate the standard cell potential. 0 E = V cell (b) What is the spontaneous cell reaction under standard-state conditions? (c) Calculate the cell potential when the hydrogen electrode is changed to the following concentrations, while all other reagents are held at standard-state conditions: (i) 4.5 x 10-2 M E = v (ii)...
8. The standard cell potential (E°cell) for the reaction below is +1.10 V. Calculate the cell potential for this reaction when the concentration of [Cu2+] = 1.0 × 10-5 M and [Zn2+] = 3.5 M. Zn (s) + Cu2+ (aq) → Cu (s) + Zn2+ (aq)
Enter your answer in the provided box. What is the emf of a cell consisting of a Pb2+ / Pb half-cell and a Pt/H/H, half-cell if [Pb2+] = 0.99 M, [H] = 0.055 M and PH, = 1.0 atm ? 0.083
8. The standard cell potential (E°cell) for the reaction below is +1.10 V. Calculate the cell potential for this reaction when the concentration of [Cu2+] = 1.0 × 10-5 M and [Zn2+] = 3.5 M. Zn (s) + Cu2+ (aq) → Cu (s) + Zn2+ (aq)
2. What is the initial cell potential for a galvanic cell consisting of a IM Zn2+ solution with Zn solid as the anode and 1 M Cu?solution with Cu metal as the cathode? The electrodes are connected through a volt meter and the compartments are connected through a salt bridge. 3. What is the initial cell potential for a galvanic cell consisting of a 0.2 M Zn2+ solution with Zn solid as the anode and 0.01 M Cu"* solution with...