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Succinic acid, an intermediate in the metabolism of food molecules, has molecular mass = 181.1 amu. When 1.926 g of succinic acid was dissolved in water and titrated, 65.20 mL of 0.5000M NaOH solution was required to neutralize the acid. How many acidic hydrogens are there in a molecule of succinic acd?
the enthalpy of formation of ethanol, C2H5OH, is -277.0 kJ/mol at 298.15k. calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 (g) and H2O.
for the reaction given below the frequency factor a is 8.7 1012 s-1 and the activation energy is 63 kjmol.nog o3g rarr
Draw the kekule structure of each of the following compounds. if cis/trans isomers exist, draw both and indicate the geometry of each. Also draw the structure of a constitutional isomer.
molecular I2 dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s-1. What is the half-life?
Calculate the volume of hydrogen gas at 25 celcius and 1.00atm required to produce an amount of energy equivalent to that produced by the combustion of a gallon of octane (C8H18).
If 4.50 g of methane gas (CH4) is in a 2.00-L container at 35°C, what is the pressure in the container?
Does FADH2 have a thermodynamic tendency to reduce coenzyme Q at pH 7. Explain why.
Which of the following molecules are polar? (There may be more than one; choose ALL the polar molecules for full credit)
Calculate the pH after 100.0 mL of KOH has been added. pH=____. 2. Calculate the pH after 150.0 mL of KOH has been added
The elements silver, molybdenum, and sulfur combine to form Ag2MoS4. What is the maximum mass of Ag2MoS4 that can be obtained if 8.63 g of silver
Calculate the equilibrium concentration of each compound if 3.10 moles of COBr2 are placed in a 3.00 liter flask at a certain temperature. Kc = 0.140 for the reaction at this temperature.
Calculate the terminal velocity of particles with a density of 1.3 g/cm3 and a diameter of 250 microns falling through water at 200 C
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