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A wastewater having an ultimate carbonaceous BOD of 847 mg/L and a reaction rate constant of -0.36/day (k = "negative" 0.36 per day) is treated for 5 days in a tank. What amount of the ultimate carbonaceous BOD is remaining after this time?
write the molecular and net ionic equation for when AgNO3 and Na2CO3 are mixed. Then write the net ionic equation when each of the following stresses are applied to the same mixture.
the cathode if you charge a lead storage battery for 1.85 h with a constant current of 13.4 A?
The enthalpy of combustion of methane, Ch4, is -890 KJ/mol. If the gas flow rate of the methane to the burner of a stove is 5 L/min at 25 degrees celsius and assuming complete heat transfer from combustion
Calculate the fraction of Fluorine atoms at 1000 K in each of the first three electronic levels based upon the following data
As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.96 atm and a temperature of 25.0 C, what is the solubility of \rm N_2 in a diver's blood?
Will the parietal pressure of SO3 increase, decrease, or remain the same? Be sure to support your answer with CLEAR calculation.
What is the amount of ammonia (as nitrogen) needed to sustain 1 gram/L of cells in an engineered bioreactor b. What is the amount of phosphorus needed to sustain the same concentration of cells in the reactor?
Write a balanced equations for the formation of the following compounds from their elements
calculate the pH of a solution that is prepared by mixing 75ml of 0.20 M (NH4)2SO4
When sodium carbonate reacts with hydrochloric acid, the carbonic acid that is formed immediately breaks down into carbon dioxide and water. What weight of sodium carbonate would have been present originally
Important information about pH and Molarity, You add 5 drops of .100 M HCl to 100ml of "pure" water. Assuming that the volume of one drop is .035ml, calculate the expected pH of the resulting solution
Why does a piece of potato break down a 100% hydrogen peroxide solution faster than lets say a 75% hydrogen peroxide and 25% water
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