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The space shuttle utilizes the oxidation of methyl hydrazine, N2H3CH3(l), for propulsion. The oxidation proceeds by the subsequent reaction: 5N2O4(g) + 4N2H3CH3(l) --> 12H2O(g) + 9N2(g) + 4CO2(g) The standard enthalpies of formation are methyl hydrazine +54 kJ/mol dinitrogen tetroxide +9.2 kJ/mol water (g) -242 kJ/mol carbon dioxide -394 kJ/mol Find out the amount of heat generated by the shuttle, in kilojoules, if it is carrying 209.0 kg of methyl hydrazine in its thruster. Presume that methyl hydrazine is the limiting reactant
When the O2 molecule is ionized to O2+, its bond becomes stronger; however, when the C2 molecule is ionized to C2+, its bond becomes weaker.
a 65.0 g sample of zinc specific heat 0.0922 calg x deg c was cooled from 100.0 deg. c to 29.4 deg. c in a calorimeter
5.30 ml of 18-nonadiene d0.74 gml allowed to react with 5.25 g of hydrogen bromide gas. two possible products can be
Calculate the molality of a solution that contains 51.2 g of naphthalene, C10H8, in 500. mL of carbon tetrachloride. The density of CCl4 is 1.60 g/mL.
The compounds Br2 and ICl have the same number of electrons, yet Br2 melts at -7.2°C and ICl melts at 27.2°C. Explain
a solution of 100.0ml of .200 m koh is mixed with a solution of 200.00ml of .150m niso4.a write the balanced chemical
Describe and explain the possible effect on your results of the following experimental errors or variations. in each case, specify the component(s) whose percentage(s) would be too high or too low
1/ A tunable dye laser emits pulses of light at 566.0 nm, each having a total energy of 7E-6 J. Calculate the number of photons in each pulse.
The combustion of .1703 mole of hydrocarbon produces 12.27g H2O and 22.48g CO2. What is the molar mass of the hydrocarbon?
What weight of Pb(NO2)2 wil have to be dissolved in one liter of water to prepare a 100ppm Pb2+ solution.
Determine the volume of oxygen gas required to completely combust 3.5 mol of propane in a bbq at standard pressure and 28.0C
A 32.0-g sample of water at 260. K is mixed with 47.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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