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18.4 mg/L of toluene is in a groundwater plume. Compute how much of the following would be necessary for full mineralization of the toluene if each reaction were the only reaction responsible for accepting the electrons from toluene. You may ignore biomass growth. Express the results as a concentration in the groundwater (mg/L):

a) O2 consumption in aerobic respiration, mg O2/L (4 points)
b) SO42- consumption in sulfate reduction to sulfides, mg S/L (4 points)
c) NO3- consumption by denitrification to N2, mg N/L (4 points)
d) Fe(OH)3 reduction to Fe2+, mg Fe/L (4 points)
e) CH4 generation in methanogenesis, mg CH4/L (4 points)

[Hint] Calculate the electron equivalents needed for toluene mineralization…
An evacuated 4 m3 tank is connected via a valve to a 10 MPa, 100 C ethane line. The valve is opened, ethane flows in for a while, and the valve is closed. Eventually the tank cools to 0 C, the ambient temperature, at which time it contains ¼ liquid and ¾ vapor, by volume. For the overall process, calculate a) heat transfer b) ∆S_tot
Can anyone help me to find the diffusion coefficient (Diffusivity) values of various gases through palladium membrane.
perform a material balance for a reactor with the following:
choose an industrial chemical as your product.
assume a basis on the industrial scale(capacity: Tons/day)

collect the information on the reaction stoichiometry,% conversion,selectivity,percent yield and other related information from sources like industries flow chart, websites and oher reliable sources.
all information used by you in your calculation should have a reference for their values.
using more industry relevant data for calculations will enhance the value of the problem solution.
Into a barrel containing 33.2 bbl (US) of water containing 0.0012 mol/L of a blue dye you pour V2 yd3 of water containing 8.91 M of the dye. The final concentration of the dye in the barrel is 7.91 mol/m3 after it's well-mixed. What is V2 is yd^3?
A balloon is slowly compressed at an atmospheric pressure of 649 torr and temperature of 169 °R. The temperature inside the balloon remains at the atmospheric temperature, while the volume changes from 0.0256 bbl (US) to V2 ft3, and gage pressure inside the balloon increases from 226 kgf/m2 to 0.672 lbf/in2.
Note: Use the ideal gas law — absolute pressure·volume=number of moles·ideal gas constant·absolute temperature. The ideal gas constant is 8.134 J·mol-1·K-1.