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A sewage lagoon that has a surface area of 10 ha and a depth of 1 m recieving 8640m3*d-1 of sewage containing 100 mg*L-1 of biodegradable contaminant. At a steady state, the effluent from the lagoon must not exceed 20mg*L-1 of biodegradable contaminant. Assuming the lagoon is well mixed and that there are no losses or gains of waterin the lagoon other than the sewage input, what biodegradation reaction rate coefficient (d-1) must be achieved fo a first-order reaction?
Why did the book suggest using a Hirsch funnel? What would be the benefit of using a Hirsch funnel?
show an example of your Ka or Kb calculation for NaC2H3O2 given that the measured pH is 7.20 and the [H+] is 6.3 x 10^-3
A bomb calorimeter with an insulating heat capacity is used to burn 5.682g of a chocolate candy bar. If the 1.00kg of water in the calorimeter then increased from 18.0220C to 56.1250C, what is the U for the chocolate in kJ/g chocolate
Calculate the following values at 25C using standard potentials as needed. E°cell, E cell, deltaG°rxn, and deltaGrxn
the phosphorylation of 2 moles of ADP to ATP and has a deltaG= -135 kJ/mol. What is the deltaG for the conversion of glucose into lactic acid?
Can someone please give me an example of the balanced redox equation for Cu2+ from one of the Qual I cations? An explanation would be great.
A buffer containing 0.25 M NH3 (Kb = 1.8 x 10-5) and 0.40 M NH4Cl is prepared. a. What is the pH of this buffer solution. b. What is the pH of the solution after 25.00 mL of 1.00 M HCl is added to 975.0 mL of buffer
Eventually, the water cools to 25.0 degrees celsius while the temperature in the room remains unchanged. Calculate deltaS(sys), deltaS(surr), and deltaS(univ) for this process.
How much ice in grams would have to melt to lower the temperature of 51.0 g of water from 65.0*C to 0*C
What would you observe if Cu2+ and Bi3+ was treated with 6M NHO3 rather than concentrated NH3
The pressure of the He at 25 degrees celsius is 145 mmHg. The bulb is then heated to 325 degrees celsius and all the (NH4)2 S decomposes to form NH3 and H2S, with a resulting total gas pressure of 875 mmHG. What is the partial pressure of the NH3 ..
Describe, in detail, how you would separate a mixture of ammonium chloride, NaCl, and sand. Will you be using chemical methods. Explain.
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