Question

In: Chemistry

What is the reduction potential at 25∘C for the hydrogen electrode in each of the following...

What is the reduction potential at 25∘C for the hydrogen electrode in each of the following solutions? The half-reaction is as follows:

2H+(aq)+2e−→H2(g,1atm)

Part A 1.0 M HCl.

Part B A solution having pH = 4.16.

Part C Pure water.

Part D 1.1 M NaOH.

Solutions

Expert Solution


Related Solutions

What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the...
What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions? [H+]=0.59M   PH2 =3.0 atm T=298 K
Calculate the equilibrium constant for each of the reactions at 25∘C. Standard Electrode Potentials at 25...
Calculate the equilibrium constant for each of the reactions at 25∘C. Standard Electrode Potentials at 25 ∘C Reduction Half-Reaction E∘(V) Fe3+(aq)+3e− →Fe(s) -0.036 Sn2+(aq)+2e− →Sn(s) -0.14 Ni2+(aq)+2e− →Ni(s) -0.23 O2(g)+2H2O(l)+4e− →4OH−(aq) 0.40 Br2(l)+2e− →2Br− 1.09 I2(s)+2e− →2I− 0.54 Part A 2Fe3+(aq)+3Sn(s)→2Fe(s)+3Sn2+(aq) Express your answer using two significant figures. Part B O2(g)+2H2O(l)+2Ni(s)→4OH−(aq)+2Ni2+(aq) Express your answer using two significant figures. Part C Br2(l)+2I−(aq)→2Br−(aq)+I2(s) Express your answer using two significant figures.
1. a. How is electrode potential related to electrochemical equilibrium? b. When the standard hydrogen electrode...
1. a. How is electrode potential related to electrochemical equilibrium? b. When the standard hydrogen electrode is connected to a half-cell containing magnesium metal immersed in 1.0 M MgSO4,, which electrode is the anode? Why? c. When the standard hydrogen electrode is connected to a half-cell containing an inert electrode in contact with liquid bromine and with 1.0M KBr, which electrode is the anode? Why?
What is the difference between the Normal Hydrogen Electrode (NHE) and the Reversible Hydrogen Electrode (RHE)?...
What is the difference between the Normal Hydrogen Electrode (NHE) and the Reversible Hydrogen Electrode (RHE)? - Also, if a redox happens at the NHE of 0.2 V, please calculate the potential for the RHE at pH = 1.
What is the difference between the Normal Hydrogen Electrode (NHE) and the Reversible Hydrogen Electrode (RHE)?...
What is the difference between the Normal Hydrogen Electrode (NHE) and the Reversible Hydrogen Electrode (RHE)? - Also, if a redox happens at the NHE of 0.2 V, please calculate the potential for the RHE at pH = 1.
What is the cell potential of the following cell at 25 oC? Standard Reduction table Cr...
What is the cell potential of the following cell at 25 oC? Standard Reduction table Cr / Cr3+ (0.053 M) // Ag1+ (0.52 M) / Ag E=____________ V
If a platinum indicator electrode is used to measure [Cu2+] (standard reduction potential of Cu2+ is...
If a platinum indicator electrode is used to measure [Cu2+] (standard reduction potential of Cu2+ is 0.337 V), and [Cu2+] = 0.0053 M, what is the cell potential (V) if the reference electrode is SCE and the measurement is taken at 298 K? I have gotten .270 and .073, Im not sure what I am doing wrong
Calculate the Standard Reduction potential of Substance B when e = -0.62 V at 25 °C;...
Calculate the Standard Reduction potential of Substance B when e = -0.62 V at 25 °C; [Breduced] = 50 µM, and [Boxidized] = 2 µM. Assume that n = 2.
A galvanic cell consists of a standard hydrogen electrode and a copper electrode. Suppose that the...
A galvanic cell consists of a standard hydrogen electrode and a copper electrode. Suppose that the copper electrode is immersed in a solution that is 0.1 M NaOH and that it is saturated with Cu(OH)2. Find the cell potential?
21. What is the cell potential for the following cells at 25°C? a. Pb(s) | Pb2+...
21. What is the cell potential for the following cells at 25°C? a. Pb(s) | Pb2+ (aq) (1.0 M) || Cu2+ (aq) (1.0x10-4 M) | Cu(s) b. Pt(s) | Sn2+ (aq) (0.001 M), Sn4+(aq) (0.005 M) || Ag+(aq) (0.500 M) | Ag(s) c. In part a, what will the concentration of Pb2+ be at equilibrium? 22. The following cell has a measured potential of 1.42 V at 25°C: Al (s) | Al3+ (aq) (0.01 M) || Co2+ (aq) (? M)...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT