Calculating Energy in Electrochemical Processes

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Questions

• How do cells generate an electrochemical gradient?
• How do electrochemical cells produce voltage?
• How do you calculate electrochemical cell potential?
• What factors affect electrochemical cells?
• What is an electrochemical cell that generates electrical energy?
• How can I use the Nernst equation to calculate the free energy change for oxidation reduction reactions?
• What is the Nernst equation?
• What are some common mistakes students make with the Nernst equation?
• What are some examples of electrochemical processes?
• How does pH affect the Nernst equation?
• How does temperature affect the Nernst equation?
• How can I solve the Nernst equation?
• Is corrosion an electrochemical process?
• Why is the Nernst equation important?
• Effect of concentration on electrode potential according to the Nernst equation?
• What is the Nernst potential?
• Can the Nernst equation be expressed directly in terms of concentrations?
• When using the Nernst equation when can it be directly express in terms of concentrations or activities?
• Does the Nernst equation also apply when there is a net current flow through the electrode?
• What are the Boltzmann factors?
• What is an electrochemical reaction?
• What is the electromotive force?
• Question #94f7e
• What is the Nernst equation?
• What is the Nernst equation?
• A Cu/Cu2+ concentration cell has a voltage of 0.22 V at 298K. The concentration of Cu2+ in one of the half-cells is 1.6E−3 M. What is the concentration of Cu2+ in the other half-cell?
• Question #2eac3
• Question #0529c
• Question #cde21
• Question #8e5c1
• Question #3e1de
• What is the voltage of a galvanic cell made with zinc and aluminum at standard conditions?
• Question #24d99
• Question #a4ee5
• For the reaction of #"Au"^(3+)# with #"Cl"_2#, if #["Cl"^(-)]# and #["Au"^(3+)]# were initially #"0.10 M"# and #"0.25 M"# respectively, while #P_("Cl"_2) = "0.5 bar"# initially, what is #E_(cell)#?
• Question #c9882
• Question #beb88
• Question #39e4b
• What is the standard cell potential for the reaction of silver cation with aluminum metal?
• What is the potential of the 1/2 cell #Cu^(2+)+2erightleftharpoonsCu# if #[Cu^(2+)]=0.1M?# # E^@=+0.34V#.
• What is a material that allows heat to move through it easily?
• What's the cell potential?
• Would you expect molten sodium chloride to conduct electricity? Why or why not?
• The electrical conductivity of #KI#(aq) is greater than the electrical conductivity of #H_2O#(l) because the #KI#(aq) contains mobile what?
• Question #3a73e
• Does the electrolyte in a lead acid battery bubble and then evaporate due to the the heat change associated with the electrochemical reactions in the battery or is it something else?
• What are organisms that use chemical substances as a source of energy?
• Question #9b0c6
• For the 1/2 cell #sf(MnO_4^(-)+8H^(+)+5erightleftharpoonsMn^(2+)+7H_2O)# the value of #sf(E^(@)=+1.51V)#. What is the value for E if #sf([MnO_4^(-)]=0.0001M)# and #sf([Mn^(2+)]=0.0005M)# ?
• How do you find the E_cell given standard E_cell, Molarity, and the chemical reaction equation?
• Question #c0c2e
• Question #2bd1a
• Question #0c19b
• Question #c7e45
• What is the cell potential for the reaction# Mg(s)+Fe^(2+)(aq)\rarrMg^(2+)(aq)+Fe(s)# at 47 °C when #[Fe^(2+)]#= 3.50 M and #[Mg^(2+)]#= 0.110 M?
• The following cell is operated as an electrolytic cell, using a current of 0.480 A . The volume of each solution is 100.0 mL. Electrolysis is stopped after 10.00 h , and the cell is allowed to function as a voltaic cell. What is #E_(cell)# at this point?
• Full steps of getting Nernst's equation?
• Help out with the following questions about the Nernst equation and #"NAD"^+#, cytochrome c, and #"Fe"# ions?
• Question #867f3
• What is the equation that connects pH and its effect on electric potential of an electrochemical cell?
• Calculate the amount of energy not used to produce electricity when a photon of wavelength #1*10^-12m# hits sodium metal which has a work function of 2.3eV?
• In a hydrogen/oxygen fuel cell 67.2 litres of hydrogen is consumed in 5 minutes. What electric current will be produced at #sf(0^@C)# and 1 atmosphere pressure ?
• Question #471de
• Electrolysis: #"Sn"^(2+) "||" "Br"_2# What is the reaction, determine E cell, equilibrium constant and direction of electron flow? Draw cell and label anode and cathode.
• Question #138dd
• Consider the reaction #2AgCl+Cu^(2+)rarr2AgCl+Cu#. Given that #DeltaG_("rxn")=-22.kJ#, How do you find the value for #E_(rxn)^@# ?