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In the procedure of plating metal with silver the silver ions are recovered from the wastewater from the plating bath by precipitating out silver chloride, AgCl. Kso for AgCl is 1.8*10-10. Presuming complete dissolution of NaCl, explain how much NaCl (in g) must be added per liter of wastewater to make sure that the soluble silver concentration is less than or equal to 1 µg/L? Presume low pH so you can ignore any complexion of silver with OH-).
Consider the addition of 22.59 mL of 0.1643 M aqueous HCl to 19.01 mL of 0.1558 M aqueous NaOH at 25°C. Assuming the volumes are additive, what is pOH of the resulting solution?
There is a difference between the hamiltonian operator for a particle on a line model as well as the harmonic oscillator model. Explain what is this difference and why does this difference occur
The equilibrium membrane potential for the case of multiple ions will depend not only on the concentrations of the ions within and outside the cell, but also on the permeability of the cell membrane to each ion Pi. Consider a situation in which on..
The majority of industrial method for the preparation of elemental phosphorus is heating a mixture of phosphate rock, carbon, and sand in electric furnace. The chemical reactions can be represented by 2Ca3(PO4)2 + 6SiO2 ? 6CaSiO3 + P4O10 and P4O10..
what is the molar concentration of a solution of sulfuric acid h2so4 if 9.11 ml react completely with 0.254 g of naoh
One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH_3 to NO: 4NH_3 + 5O_2 yields 4NO +6H_2O In a certain experiment, 2.05g of NH_3 reacts with 3.76g of O_2 How many grams of NO and of H_2O will ..
A solution of ethanol (C2H5OH) in water is prepared by dissolving 63.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
solution of H3PO4 and you want to completely react it with KOH. How many ml of a .462 M KOH solution do you need to accomplish this? How many grams of the two products do you produce?
Raw milk sours in 4.0 hours at 28 degrees celcius but takes 48 hours to sour in a refrigerator at 5 degrees celcius. Calculate the activation energy for the souring of milk?
Which contains the larger number of molecules, 10.0 g H2O or 10.0 g H2O2. In a blast furnace, iron (III) oxide reacts with coke (carbon) to produce molten iron and carbon monoxide
A non-volatile solute depresses the freezing point of cyclohexane by 4C. If cyclohexane has the formula C6H12 calculate the mole fraction of solute and solvent present in the solution.
Suppose that the atomic mass unit (amu) had been defined as one-quarter of the average mass of an atom of carbon instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of aluminum be on this new scale
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