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The enthalpy of combustion of benzoic acid C6H5COOH is commonly used as the standard for calibrating constant-volume bomb calorimeters. Its value has been accurately determined to be 3226.7 KJ/m. When 3.0285g of benzoic acid are burned in a calorimeter, the temperature rises 3.84 degrees Celsius. What is the heat capacity of the bomb?
Molecular compound Y2(g), has a bond energy of 750 kJ/mol, and the molecular compound XY(g) has a bond energy of 1500 kJ/mol. Using bond-energy information, calculate ?H for the following reaction:
CH3CH2CH2CN can be synthesized by an SN2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this compound in highest yield.
Silver metal crystallizes in a cubic closest packed structure. The face centered cubic unit cell edge is 409 pm. Calculate the density of the silver metal.
Helium atoms do not combine to form He2 molecules, yet He atoms do attract one another weakly through
What are the values of delta H and delta S for dissolution of PbI2? PbI2 (s) --> Pb^(2+) (aq) + 2I^(-) (aq) You may assume that delta H and delta S are independent of temperature.
if you burn 40.7 g of hydrogen and produce 364g of water, how much oxygen reacted?
what would be the proper sequence for the following compounds to be listed from highest melting point to least?
What is the pH of a buffer solution that is 0.10M methylamine and 0.10Mmethylammonium salt?what is the pH if 12ml of 0.20Mhcl
One significant breakthrough in the study of the immune system was the development of monoclonal antibodies. State what these are, how they are made
Limestone (CaCO3) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts with sulfur dioxide to form calcium sulfite
An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38°C, she adds 20.00 mL of 0.01017 M aqueous iodine, which reacts as follows:
Formulas and constants to remember R = 1.98 cal/degree-mole ; Delta G0 = -RT lnKeq. T = 298 degrees K. How much NADH will be produced in the above reaction
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