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A concentration cell is built based on the following half reaction by using two pieces of zinc as electrodes (each weighing 100.0 g), two Zn2+ solutions, 0.105 M and 0.431 M (both exactly 1.00 L in volume), and all other materials needed for a galvanic cell. What will the mass of the anode electrode be when the cell potential is 0.009916 V at 307 K?
Zn2+ + 2 e- ? Zn Eo = -0.761 V
what is the maximum [ATP]/[ADP][Pi] ratio compatible with ATP synthesis assuming that the number of protons trans-located per ATP formed is 2, the temperature is 25C and the change of pH is 0.75?
You dissolve 1.00 gram of an unknown diprotic (two titratable protons) acid in 200.0 mL of H2O. This solution is just neutralized by 5.00 mL of a 1.00 M NaOH solution. What is the molar mass of the unknown acid?
Which of the following reactions is (are) oxidation-reduction reactions? Explain your answer briefly.
Tetrahedral complexes of Co2+ are quite common. Use a d-orbital splitting diagram to rationalize the stability of Co2+ tetrahedral complex ions.
At a certain temperature, reaction has equilibrium constant (Kc) of 1.9 x10^19. Determine the equlibrium constant for the reaction based on this information at the same temperature.
A. Suppose you wanted to produce 1.00L of a 3.50 M aqueous solution of H2SO4. 1. What is the solute 2. What is the solvent 3. How many grams of solute are needed to make this solution
C2H6, is completely combusted in oxygen. If the total mass of CO2 produced is 34.8 grams, what was the approximate mass of the methane in the original mixture?
use oxidation number to show which element is oxidized and which element is reduced in this equation 2H2o2----2H2O+O2
caclculate the number of grams of Fe formed when 0.300kg of Fe2O3 reacts.
The HCl molecule is quite well described by the morse potential with hcDe=5.33 ev. v=2989.7 and xv+52.05 . Assuming that the potential is unchanged on deuteration , predict the dissociation energy of HCl and DCl
A sample of water vapour at 200 degrees C is compressed isothermally from 350 cm^3 to 120 cm^3. What is the change in its molar Gibbs
a quantity of ice at 0.0 degrees Celsius was added to 33.6grams of water at 21.0 degrees Celsius to give water at 0.0 degrees Celsius. the heat of fusion of water is 6.01 kj/mol and the specific heat is 4.18 J/(g*celcuis) how much ice was added?
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