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Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision: qV = 26.434 kJ/g. When a 2.088 g sample of C6H5COOH(s) was burned in a particular bomb calorimeter, the temperature increased by 11.77 oC. In a second experiment, a 1.217 g sample of a compound with the formula C6H14O(l) was burned in the same calorimeter. The temperature increased by 10.08 oC. Use these data, plus the information given below for CO2 and H2O, to estimate the standard enthalpy of formation, of H, at 25 oC for this compound of H values at 25 oC for CO2(g) and H2O(l) are 394 kJ mol 1 and 286 kJ mol 1, respectively.
Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees Celsius to form exclusively isopropyl alcohol and 1-iodobutane.
What were the principal quantum numbers of the initial and intermediate excited states involved?
What is the molar heat of vaporiza-tion of C6H6 if the vapor pressure of C6H6 is 120 torr at 27 degree celsius, and its normal boiling point is 80.1 degree celcius.
AgCl precipitates first. What is the concentration of the Ag+ remaining in solution when CuCl begins to precipitate? For AgCl, pKsp = 9.74. and for CuCl, pKsp = 6.76.
Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?
Each cube measure 2.0 cm on each side.After you carefully lower each cube into the water of its own cylinder, what will the water level be in each cylinder?
A solution is prepared by adding 80.0 mL of 0.090 M HBr to 130.0 mL of 0.50 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids.
What is the theoretical percent, by weight, of calcium in Ca(OCl)2
Calculate the approximate length of PVA strand assming that each monomer unit contributes two carbon atom diameters to the length
You need 70.2K to raise the temperature of 34.0 g of ammonia from 23 c to 24 c. Calculate the heat capacity of ammonia
Which of the following represents the maximum available useful energy when a system changes spontaneously from a given initial state to a given final state
Iridium-192 is often used in the head or breast. Answer the following three questions (a, b, and c) based on the radioactive decay curve of iridium-192, shown below. Click on the graph and move the mouse over a point to get values for that point.
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