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1) Some bacteria are able to harvest light of 1000 nm wavelength. A) What is the energy (in kilojoules) of a mole of 1000 nm photons? B) What is the maximum increase in redox potential that can be induced by a 1000 nm photon? C) What is the minimum number of 1000 nm photons needed to form one molecule of ATP from ADP and Pi (assume standard state ΔG value for ATP synthesis)?
2) The chorlophyll of photosystem I (PSI) absorbs a photon of 700 nm wavelength. In its ground state, this P700 chlorophyll has a standard state reduction potential (E°') of +0.4 V. Absorbance of a photon alters this E°' to -0.6V. What is the efficiency of energy capture in this light reaction of the P700 chlorophyll?
For the calcium ion create a procedure for preparing a 0.100 M solution from the solid, Anyhydrous Calcium Chloride, CaCl2. Make sure to include amounts and equipment you will use for the preparation.
What happened when 6.0M HCl was added to the contents of the tube in 7a above?
total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 149 g of solution. The reaction
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH. Consider just acid base chemistry. Ignore ion pairing ..
Use values of Ksp for Zn(OH)2 and Kf for Zn(OH)4-2 (page 330) to predict if a precipitate will form when you prepare a solution which contains 0.010 M Zn2+ and 1.0 M NaOH.
Metal X was plated from a solution containing cations of X. The passage of 48.25 C deposited 31 mg of X on the cathode. What is the mass of X (in grams) per mole of electrons.
Convert lb mol CaC2 feed to lb and calculate lb inerts added. The total lb solids in the slurry is then the sum of the Ca(OH)2 plus inerts. In calculating the water added, remember that some is consumed in the reaction.]
a solution is made by dissolving 25g of nacl in enough water to make 1.00 l of solution. assume that the density of the
At 80C the vapor pressures of pure liquids X, Y, and Z are 385, 190, and 66 mmHg respectively. what pressure must be exerted on the surface of a solution containing one mole of X, three moles of Y, and two moles of Z for boiling to begin at 80C
What is the minimum distance that the moving mirror in the FTIR instrument must transit to resolve these two resonances?
If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system?
Identify the element or elements that undergo
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