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some species of bacteria can oxidize nitrite to nitrate using the energy released by the transfer of electrons to oxygen to drive ATP synthesis. Given the E values below, calculate the max yield of ATP per mole of nitrite oxidized.
NO3 + 2H+ + 2e ---> NO2 +H2O, E= +0.42 V
O2 + 2H+ + 2e ----> H2O, E= +0.82 V
(F= 23.062 kilocals/mol)
an adult female weighting 125lbs must consume 2000 calories of food daily. if this energy is used to synthesize atp
Calculate the pH after 0.15 mol of NaOH is added to 1.00 L of 0.60 M HF and 1.01 M KF.
12.0 moles of gas are in a 6.00 tank at 20.3. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300 L^2*atm/mol^2 and b=0.0430 L/mol .
The few gas analysis shows as carbon dioxide 14%, carbon monoxide 0.4%, oxygen 5.6% and nitrogen 80%. The air used has a dew point of 50°F. The barometer shows 29.9 inches of mercury. Calculate the dew point of the stack gas.
Which ions were present in the original solution? What are the net ionic equations for each reaction that occured?
What is the limiting reactant when equal masses of iron(III) chloride and potassium phosphate react in solution?
Take element Z = 57 from the periodic table. Ionize it 56 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
what is the mass in grams of 17.55ml of acetone? and what is the volume in milliter of 7.26g of acetone?
Determine the molar mass of each of the following gases: a) 2.90 g of a gas that occupies 0.500 L at 0 degrees C and 1.00 atm (STP); b) 1.43 g of gas that occupies 2.00 L at 0 degrees C and 760 mmHg (STP); c) 0.726 g of a gas that occupies 855 mL ..
A sample of nitrogen has a volume of 630 mL at a temperature of 49 degC. Assuming that the pressure is constant, what will be the volume when the temperature is 348.6 degC.
20 ml Calcium Hydroxide solution was titrated with 9.8 ml 0.0105 M HCl in according to reaction: Ca(OH)2 + 2HCl ? CaCl2 + 2H2O What is the Molarity of Ca(OH)2 in the solution
An electron in the n = 4 level of an H atom emits a photon of wavelength 97 nm. To what energy level does the electron move?
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