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CH4+202=CO2+2H20 H=.889.1KJ
HfH20=-285.8KJ HFCo2=-393.5KJ
What is the standard heat of formation of methane CH4 as calculated from the data above?
A 75.0 L steel tank at 20.0C contains acetylene gas (C2H2) at a pressure of 1.39 atm. Assuming ideal gas behavior, how many grams of acetylene are in the tank?
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount from pure gasoline.
Explain the large disparity in the numerical results pf Part (a). Discuss the advantages and disadvantages of the three energy sources.
what is the volume of co2 that can be removed using a 2.6 kg sodium peroxide cartilage? evaluate at stp. temp 0 degrees C and 1atm pressure.
Consider a sample that is a mixture composed of biphenyl, benzoic acid and benzyl alcohol. predict the order of elution oc the components in this mixture. assume that the chromatography uses silica column and the solvent system is based on cyclohe..
calculate the potential of a platinium electrode immersed in a solution prepared by mixing 25.00ml of 0.0918 M SnCl2
during one of the processes at the plant. The two liquids are blended until a specific gravity of 1.445. Determine the mole percentage of the two components in the blend.
what is the ratio of the population of nuclei oriented opposite the magnetic field with respect to those oriented with the magnetic field at 25°C
A wooden artifact from a Chinese temple has a activity of 43.3 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age
Hospital X-ray generators emit X rays with wavelength of about 15.0 nanometers (nm), where 1nm=10^9-m. What is the energy of a photon of the X rays
a 1L flask contained 2g N2, 0.4g H2 and 9g O2 at 27c. what is the total pressure in the flask?
Rank the following aqueous solutions in order of increasing boiling point: 0.10 mNa2SO4, 0.10 m SrSO4, 0.25 m sucrose, 0.20 m glucose, 0.15 m NaCl
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