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Problem- The reaction of MnO4^? with oxalic acid (H2C2O4) in acidic solution, yielding Mn^2+ and CO2 gas, is widely used to determine the concentration of permanganate solutions.
A) Write a balanced net ionic equation for the reaction.
B) Use the data in Appendix D in the textbook to calculate E? for the reaction.
C) and D) Show that the reaction goes to completion by calculating the values of ?G? and pK=?log(K) at 25 ?C
E) A 1.325g sample of sodium oxalate (Na2C2O4) is dissolved in dilute H2SO4 and then titrated with a KMnO4 solution. If 30.95mL of the KMnO4 solution is required to reach the equivalence point, what is the molarity of the KMnO4 solution? State your answer using four significant figures.
A gas mixture of methane and steam at atmospheric pressure at 773.15K is fed to a reactor, where the following reactions occur: CH4+H20->CO+3H2 and CO+H2O->CO2+H2
For each of the following electronic transitions in the hydrogen atom, calculate the energy, frequency, and wavelength of the associated radiation, and determine whether the radiation is emitted or absorbed during the transition:
The sulfur and hydrogen in the fuel are completed oxidized to SO2 and H2O. 8% of the carbon is oxidized to CO, and the balance forms CO2. Calculate the dry basis mole fractions of the flue gas
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Compute the numerical value for the equilibrium constant, Keq for the amino acid, Histidine based on the subsequent equilibrium HisH+ (aq) + OH- (aq) His^0 (aq) + H20 (l)
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution. 25 mL of this solution titrated with 30 mL of NaOH.
What volume of 0.128 M Li2S solution is required to completely react with 170. mL of 0.128 M Co(NO3)2?
With a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
Assume a weather balloon is a perfect sphere with radius, r=3m. Archimede's principle states that if something is less dense than air it will rise until its density is equal to the density of air it displaced. Assume air is 80% nitrogen and 20% ox..
Calculate the change in internal energy of the following system: a 100.0- bar of gold is heated from 25 to 50 during which it absorbs 322 of heat. Assume the volume of the gold bar remains constant.
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