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The bomb that destroyed the Murrah Federal Office building in Oklahoma City in April 1995 was constructed from ordinary materials: fertilizer(ammonium nitrate) and fuel oil ( a mixture of long-chain hydrocarbons, similira to decane, C10H22). Determine the standard enthalpy change of the following explosive reaction by using the apprpriate enthalpies of formation (delta Hf, for C10H22 = -249.7 kJ/mol) 3 NH4 NO3(s) + C10H22 (l) + 14O2 (g) > 3 N2(g) 17 H2O (g) + 10 CO2 (g) Answer in kJ
Calculate the amount of heat transferred when 45.0 g of CH3OH(g) is decomposed by this reaction at constant pressure.
Wriite an equation for a substitution reaction between 2-bromopropane and potassium iodide. In this case, do not include the state
A reaction of the form aA---->Products gives a plot of ln[A] vs time (in seconds) which is a straight line with a slope of -7.35e-3. Assuming [A]0=0.0100M,
Explain how to determine exclusion limit of a gel of unknown origin.
Calculate the energy released when a 28.9 gram piece of copper is cooled from its melting point of 1083 degrees C to 25.0 degrees C. The specific heat of copper is .385 J/g degrees C.
The human body is about 2/3 water. Sucrose is metabolized by the body. If the oxygen gas has a partial pressure of 162 Torr, what volume (at 37 degrees Celsius) is required for the metabolism reaction C_12_H_22_O_11 + O_2 > H_2_O + CO_2
Starting with a sample of (R)-2,3-dimethylhexan-3-ol, provide the best synthesis of (R)-3-chloro-2,3-dimethylhexane
A cool solution of sodium nitrite and a solution of the amine in an ice bath. Moderately concentrated hydrochloric acid is added.
FInd the definition of cross-linking. How does cross-linking change the properties of a polymers
If you were to perform this reaction in a lab, you would make far less than the theoretical yield of product due to a wide range of outside factors. We can compare the actual yield to the theoretical yield to calculate the percent yield:
its freezing point depression constant is 8.37*C per molal. Use your corrected average temperature (5.0*C) to find the molality of the water in the alcohol. Find the percent water in the alcohol.
In a certain process, 750. J of work is done on a system which gives off 195 J of heat. Calculate the total energy change (?U) for this process
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