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help with these please A voltaic cell is constructed in which the cathode is a standard...
A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode ()= 1atm) immersed in a solution of unknown [H+]. If the cell potential is 0.179 V, what is the pH of the unknown solution at 298 K? pH =
A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode ()= 1atm) immersed in a solution of unknown [H+]. If the cell potential is 0.190 V, what is the pH of the unknown solution at 298 K? pH =
Please do I do rate :) A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode ( Ph,)=latm) immersed in a solution of unknown [H']. If the cell potential is 0.198 V, what is the pH of the unknown solution at 298 K? pH =
A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode (PH,)= latm) immersed in a solution of unknown [HT]. If the cell potential is 0.208 V, what is the pH of the unknown solution at 298 K? pH = Submit Answer Retry Entire Group 9 more group attempts remaining
a.) A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode (P(H2) = 1 atm) immersed in a solution of unknown [H+]. If the cell potential is 0.204 V, what is the pH of the unknown solution at 298 K? b.) An electrochemical cell is constructed in which a Cr3+(1.00 M)|Cr(s) half-cell is connected to an H3O+(aq)|H2(1 atm) half-cell with unknown H3O+ concentration. The measured cell voltage is 0.366...
please help, What is the binding energy in kJ/mol nucleons for lanthanum-138? kJ/mol nucleons 57 H+81.n—-13 La The required masses (g/mol) are: H= 1.00783 ; on=1.00867 ; 13. La= 137.90680
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...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode and which is the anode, and calculate the cell potential. (Use the table of Standard Electrode Potentials.) (a) Ca(II) and Sc(III) Cathode: . Ca(II) Sc(III) Anode: Ca(II) Sc(III) Ecell = 0.0591 x V (b) Pb(II) and In(III) Cathode: . Pb(II) In(III) Anode: Pb(II) In(III) Ecell - (c) Ni(II) and Zr(IV) Cathode: NI(II) Zr(IV) Anode: Ni(II) Zr(IV) Ecell - V Supporting Materials Periodic Table Supplemental...
help with these please kJ/mol What is the binding energy in kJ/mol Sb for antimony-123? 51 H+ 726n—-133 SD The required masses (g/mol) are: H= 1.00783 ; on=1.00867; "31 Sb=122.90410 What is the binding energy in kJ/mol nucleons for silver-107? kJ/mol nucleons 47 H+60on— 197Ag The required masses (g/mol) are: H - 1.00783 ; on - 1.00867; 197 Ag - 106.90509 The free energy change for the following reaction at 25°C, when [H'] = 1.16 M and (Sn2-1 =7.02x10 3...
A voltaic cell is constructed in which the abode is a Zn|Zn^2+ half-cell and the cathode is a Cl^- Cl_2 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 (5). If a box is not needed, leave it blank.) The anode reaction is: In the external circuit, electrons migrate ___ the CT|Cl_2 electrode ____ the Zn|Zn^2+ electrode. In the salt bridge, anions migrate...