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The assay for Xase has just been worked out, and you have a preparation of cells rich in this enzyme. Given the required equipment and supplies, how would you proceed
Describe the role of the citric acid cycle as a central metabolic mechanism. Explain what happens to the cells' abilities to oxidize acetyl CoA when intermediates of the cycle are drained off for am
Describe, in detail, the structure of ATP and its function in oxidative phosphorylation and photosynthesis
Knowing the complete genome of an organism doesn't necessarily tell you about the nature of all proteins in the organism. Explain why
Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins.
At 25 degrees Celsius the rate constant for the first-order decomposition of a pesticide solution is 6.40 x 10^-3 min^-1 If the starting concentrate of pesticide is 0.0314M what concentration will
Calculate the pH of 2.00L of buffer made u of 1.00 mole of sodium acetate and 1.00 mole acetic acid before and after the addition of 0.10 mole of NaOH. Assume there is no change in volume when NaOH
Consider the reaction H2(g) + I2(g) -> 2HI(g) delta G degrees at 298K = 2.60 kJ/mol. In an experiment the initial pressures are H2=4.26 atm, I2 = 0.024atm, and the HI =0.23atm Calculate A. Dellta
How do you calculaate the solubility (in grams per liter) of magnesium hydroxide Mg(OH)2
Suppose that 1.75 g of NaOH is added to 250mL of 0.10 M NiCl2 solution. What mass, in grams, of Ni(OH)2 will be formed? What will be the pH of the final solution? For Ni(OH)2, Ksp = 5.5 x 10^-16
The temperature after the reaction is 25.23 C. If the density of final solution is 1.02 g/mL, calculate q, if the specific heat of the solution can be assumed to be equivalent to that of water.
Calculate the mass deficiency in amu, binding energy in J/atom, and binding energy in MeV/nucleon for zinc-64, with an actual mass of 63.9291amu
Consider the titration of 30.0mL of 0.050 M NH_3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added. a) 0mL b)20.0 c)59.3 d)60 e)72.6 f)73.1
The reaction is allowed to reach equilibrium. At equilibrium the number of moles of B is 18.32. Calculate the equilibrium constant for the reaction A (g) + 2B (g) reacting with 3 C(g)
Find the number of faradays passed through the circuit. What mass of Ag is deposited at the cathode in the second cell. What mass of Fe(NO3)3 might be recovered from the third cell solution
Write the net ionic equation for the cell and identify which half cell will be cathode A cell constructed with a Ag/Ag+ half-cell and a Cu/Cu+ half cell.
Calculate the mass deficiency in amu, binding enery in J/atom, and binding energy in MeV/nucleon for zinc-64, with an actual mass of 63.9291 amu.
A buffer system contains .55 M acetic acid and .47 M sodium acetate. What is its pH? The Ka for acetic acid is 1.8x10^-5.
The Ksp for silver cyanide is 1.2x10^-8, the Ksp for zinc cyanide is 8.0x10^-12, and the Ksp for aluminum cyanide is 2.3x10^-21. What is the minimum cyanide concentration needed to precipitate each
Calculate the potential of the following cell and indicate whether the reaction is expected to be spontaneous
Calculate the potential of the following cell and indicate whether the reaction is expected to be spontaneous. Cr + 3 Ag+ ---> Cr3+ + 3Ag
Compute the equilibrium constant for the reaction between Sn2+ (aq) and Cd(s)
What mass of sodium nitrate (in g) is required to make 2.50L of a 0.150M solution of sodium nitrate
Concentrated hydrochloric acid solution contains 37.2 m/m% HCl. What mass of HCl is contained in 35.5g of concentrated HCl