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Comment on the applicability of [Fe2(S)2(SPh)4]^n shown below as a model for redox/spin states of [2Fe*2S] ferredoxin.
The cell shown above is a concentration cell. Both cells contain copper solutions and have copper electrodes.
One type of ion in the crystal lattice of the precipitate is replaced by another type of ion that has a similar size.
Would it be a good idea for a person to take a couple of aspirin tablets before attending a cocktail party? Explain your reasoning.
If you are given a 1.47g sample of a mixture of the Ni(II) and Ni(III) salts; determine the % by weight of Ni(II).
Calculate the concentration of a Pb(NO3)2 in a solution made up of 49.1 mg of solid Pb(NO3)2 (MW=33.22) dissolved in 65.00 mL of water (MW=18.02).
Use the following pair of half-reactions to design a galvanic cell. Then write in the proper coefficient for each of the species.
The active ingredient in many commercial liquid bleaches is sodium hypochlorite. The bottle lists the percentage of sodium hypochlorite as 6.0%.
Calculate the minimum energy required to produce molecular hydrogen from gas-phase water.
The total pressure in the flask at the end of the reaction is found to be 4.35892 atmand the gas constant, R, is 0.0820575 L@atm/K@mol.
The following complexes I, II, and III represent model compounds for the molybdenum-containing enzymes involved in oxygen-atom transfer (OAT) reactions.
Use a battery and water treated with washing soda to separate water into hydrogen and oxygen in class.
Beginning with 1m concentration of each reactant and product at pH 7, in which direction will the following reaction proceed?
Find the standard electrode potential, E°, and DG° for the following reaction: Is the reaction spontaneous? Can iodic acid exist?
The daytime concentration of OH in continental air averages 8.3E6 molecules per cubic centimeter. Calculate its molar concentration.
Calculate the delta G for the reaction. If this reaction were used in a fuel cell, what would the standard cell potential be?
Give the cell diagram notation of the electrochemical cell that could be used to determine experimentally the dissociation constant (Kw) of water.
Calculate the change in G for a voltaic cell with E= +0.309V if the overall reaction involves a 3 electron reduction.
Balance the following equations using the half cell method and show both their half cell reactions, including how to identify them.
Calculate the standard state emf, fancy E, change in G, and K at 25 degrees celcus for the following reaction
Identify the anode, cathode, and the direction of flow of electrons in the external wire connecting the electrodes.
What is the emf of a galvanic cell consisting of a Cd2+/Cd half-cell and a Pt/H+/H2 half-cell if [Cd2+] = 0.28 M, [H+] = 0.21 M, and PH2 = 0.62 atm?
Determine which of the following statements about the cell shown are True or False.
Use the following pair of reduction half-reactions to design a galvanic cell. Then write in the proper coefficient for each of the species.
In the following reaction, identify the oxidizing and reducing agents.