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An electrodialysis is used to treat a stream of 125 m3/d produced water with a salinity of 13,000 mg/L NaCl before the produced water is discharged to the river with the flow rate of 5 million L/d and salinity of 20 mg/L NaCl. The flow rate of the concentrated salt stream exiting the electrodialysis is 20 m3/d. Below the discharge point of the treated produced water is a prime sport fishing spot, and the fishes are intolerant to salt concentrations above 200 mg/L. What is the minimum removal efficiency of the electrodialysis? Assume that the density values of the concentrated salt stream and all of the untreated/ treated produced water streams are identical.
what is the ratio of acetate to acetic acid in a 0.1 m buffer at ph 4.75?what happens when 5 ml 0.1 m hcl is added to
Vanadium crystallizes in a body centered cubic lattice (the V atoms occupy only the lattice points). How many V atoms are present in a unit cell?
draw four different lewis electron-dot formulas for the seo2nbspmolecule. hint one should have two single bonds two
The mass of an electron is 9.11 * 10^{-31} kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31*10^{-10}m, how fast is the electron moving relative to the speed of light?
can someone please show me how to draw 2-bromo-3,3-dimethyl-pentane according to Markovnikov's rule
The volume occupied by 1000. kilograms of the metal at 25 degrees Celsius. If 13.5 grams of aluminum were dissolved in an excess of concentrated HCl what volume of hydrogen gas would be released at STP? Assume the ideal gas law and that the vapor ..
For the reaction N2O4(g) (equilibrium arrows) 2NO2(g), kp = 0.25 at a certain temperature. Calculate the equilibrium pressures of NO2(g) and N2SO4(g) if the initial pressures of the components when placed in an otherwise empty container are as f..
A current of 4.65 A is passed through a Ni(NO3)2 solution for 1.10 hours. How much nickel is plated out of the solution
An aqueous copper(II) sulfate solution is electrolyzed for 3 hours with a 1.8 ampere current
A 200. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 48°C?
The spherical r theta phi equation needs to be used but am having difficulty with the integral of the equations.
calculate the mass of air in an air-filled tire and the mass of helium in a helium-filled tire. what is the mass
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