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Of the dehydrogenase reactions in glycolysis and the TCA cycle, allbut one use NAD+ as the electron acceptor. The loneexception is the succinate dehydrogenase reaction, which usescovalently bound FAD of a flavoprotein as the electron acceptor. The standard reduction potential for this bound FAD is in the range of 0.003 to 0.091 V . Compared with the other dehydrogenase reactions of glycolysis and the TCA cycle, what is unique about succinate dehydrogenase? Explain why is bound FAD a more suitable electronacceptor in this case?
A solution of 75.0 g of benzene (C6H6) and 75.0 g of toluene (C7H8) has a total vapor pressure of 80.9 mmHg at 303 K. Another solution of 100.0 g benzene and 50.0 g toluene has a total vapor pressure of 93.9 mmHg at this temperature.c
Determine the energy change associated with these changes in state: a. 138g of steam condenses,b. 261mg of solid mercury melts,c. 8.36g of rubbing alcohol freezes d. 52g of liquid methane boils
It is estimated that more than 5 billion metric tons of CO2 is added to the atmosphere each year. Assume that CO2 is an Ideal gas at 25 oC and 1 atm.
At 25°C, 1.0 g of caffeine is dissolve into 47 ml of water, 18 ml of dichloromethane, into 86 ml of benzene, or into 270 ml of diethyl ether. Which solvent would provide the largest extraction coefficient (KD). Briefly explain.
15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.496 M HNO2 (Ka for HNO2 = 4.0 × 10-4). What is the equilibrium concentration of NO2- ions?
a lake in central texas contains 5.0 billiion liters of water. the pH is normally 6.4, but it is tested at 5.6. how much CaCO3 should be added to bring the pH to a more reasonable 6.0?
prepare a 700- to 1050-word paper in which you analyze the effects of ionizing radiation on dna to provide a chemical
If 200 ml of gas at 400 torr is transferred to a 20.0 ml cotnainer. What will the new pressure be if the temperature is kept constant?
Calculate the molality of a solution prepared by dissolving 112. grams of copper (II) sulfate in 450. mL of water at 25°C.
Suppose you were given a pure stereoisomer that rotated the ppl either +60 degrees of -120 degrees ie. the same intensity of yellow light is observed for both of these readings. What would you do to determine if the proper reading were +60 or -120
93.0 ml of 0.150 m magnesium hydroxide is added to 57.0 ml of 0.4 m nitric acid. magnesium nitrate and water are
If all the SCN- were not converted completely to FeNCS2+ when the calibration curve was prepared, would this raise or lower the value of Keq
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