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If the voltage of a Zn-H+ cell is 0.45 V at 25 C, when [Zn^2+] = 2.0 M and PH2 = 1 atm, calculate the concentration of...
If the voltage of a Zn-H cell is 0.45 V at 25°C when [Znat) = 2.0...
If the voltage of a Zn-H cell is 0.45 V at 25°C when [Znat) = 2.0 M and PH2 = 1.0 atm, calculate the concentration of H". 1 = Fil 1 702
If the potential of a Zn-H+ cell (see below) is 0.45 V at 25 C when...
If the potential of a Zn-H+ cell (see below) is 0.45 V at 25 C when the [Zn2+] = 1.0M and PH2 = 1 atm, what is the pH of the cathode solution? Zn(s)|Zn2+(aq)|| H+(aq)|H2 (g)|Pt
The measured voltage in a Zn-H cell is 0.45 V at 25°C when IZn*21 is 1...
The measured voltage in a Zn-H cell is 0.45 V at 25°C when IZn*21 is 1 M. What is the concentration of H? 0592 E-E- 1g a Q = 2 4S =E A3D EZO -15.2 loj Q CH log of 3-15.2 T O.Ho cell potential, E H+] S.7X10M E.C. pH= -2
A Zn/Zn2+ concentration cell has a voltage of 0.204 V at 25 ∘C. The concentration of...
A Zn/Zn2+ concentration cell has a voltage of 0.204 V at 25 ∘C. The concentration of Zn2+ in one of the half-cells is 1.49×10−3 M . What is the concentration of Zn2+ in the other half-cell? (Assume the concentration in the unknown cell to be the lower of the two concentrations.) Express your answer using 2 decimal places and in pM. (p = pico = 10-12)
Consider a voltaic cell al 25 degree Celsius in which the reaction is: Zn (s) +...
Consider a voltaic cell al 25 degree Celsius in which the reaction is: Zn (s) + 2H+ (aq) → Zn2+ (aq) + H2(g) It is found that the voltage (think Ecell) is +0.560 V when [Zn2+1 -0.85 M and PH2 = = 0.988 atm. What is the pH in the H2-H half-cell?
H aq H g anode An electrochemical cell consists of a H aq 1 .00 M H g) cat ode connected to a which e H concentration a ofa u er cons nu of a weak acid HA(0.116 M), mixed with its conjugate base, A (...
H aq H g anode An electrochemical cell consists of a H aq 1 .00 M H g) cat ode connected to a which e H concentration a ofa u er cons nu of a weak acid HA(0.116 M), mixed with its conjugate base, A (0.143 M). The measured cell voltage is E°ell 0.163 V at 25 °C, with PH2-1.00 atm at both electrodes. Calculate the pH in the buffer solution and the K of the weak acid. Ka
H...
A galvanic cell was constructed with a Zn/Zn2+ half cell and an H2/H+ half cell(standard hydrogen...
A galvanic cell was constructed with a Zn/Zn2+ half cell and an H2/H+ half cell(standard hydrogen electrode, SHE). Calculate Ecell under the following conditions: [Zn2+] = 0.01 M, [H+] = 2.5 M, and PH2 = 0.30 atm at 25°C?
Question 1 1 pts For the cell: Zn(s) + 2H+ (aq) + Zn2+(aq) + H2 (g)...
Question 1 1 pts For the cell: Zn(s) + 2H+ (aq) + Zn2+(aq) + H2 (g) If [Zn2+) = 1 M, PH2 = 1 atm, and E = 0.549 V what is pH? Question 2 1 pts Calculate the voltage for the following cell at 25° ZnZn+2 ( 2.832 M) || Cd2+ (0.027 M)| Cd
(2 pts.) For the following electrochemical cell at 25°C: Zn(s) | Zn2+ (aq) || H+ (aq)...
(2 pts.) For the following electrochemical cell at 25°C: Zn(s) | Zn2+ (aq) || H+ (aq) | Pt,H2 (g) (P=1.00 atm) calculate DG° in kJ calculate Ecell for [H+] = 0.8 M and [Zn2+] = 0.5 M calculate K at 25°C
The voltage of the following cell at 25 ̊C is + 0.65V. The standard reduction potential...
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?
If the voltage of a Zn-H cell is 0.45 V at 25°C when [Znat) = 2.0 M and PH2 = 1.0 atm, calculate the concentration of H". 1 = Fil 1 702
The measured voltage in a Zn-H cell is 0.45 V at 25°C when IZn*21 is 1 M. What is the concentration of H? 0592 E-E- 1g a Q = 2 4S =E A3D EZO -15.2 loj Q CH log of 3-15.2 T O.Ho cell potential, E H+] S.7X10M E.C. pH= -2
Consider a voltaic cell al 25 degree Celsius in which the reaction is: Zn (s) + 2H+ (aq) → Zn2+ (aq) + H2(g) It is found that the voltage (think Ecell) is +0.560 V when [Zn2+1 -0.85 M and PH2 = = 0.988 atm. What is the pH in the H2-H half-cell?
H aq H g anode An electrochemical cell consists of a H aq 1 .00 M H g) cat ode connected to a which e H concentration a ofa u er cons nu of a weak acid HA(0.116 M), mixed with its conjugate base, A (0.143 M). The measured cell voltage is E°ell 0.163 V at 25 °C, with PH2-1.00 atm at both electrodes. Calculate the pH in the buffer solution and the K of the weak acid. Ka
H...
Question 1 1 pts For the cell: Zn(s) + 2H+ (aq) + Zn2+(aq) + H2 (g) If [Zn2+) = 1 M, PH2 = 1 atm, and E = 0.549 V what is pH? Question 2 1 pts Calculate the voltage for the following cell at 25° ZnZn+2 ( 2.832 M) || Cd2+ (0.027 M)| Cd
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