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Chemistry question (Stoichiometry) |
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| Sep30-10, 09:34 PM | #1 |
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Chemistry question (Stoichiometry)
1. The problem statement, all variables and given/known data
During the Apollo missions, each lunar module decelerated toward the surface of the moon by the oxidation of "Aerozine-50" fuel. Aerozine-50 is a blend of hydrazine, N2H4, and dimethylhydrazine, CH3()2N2H2, 50% by mass in each component (known to infinite precision). Nitrogen tetroxide, N2O4, was used as the oxidizing agent. c. Determine the depth in centimeters of the equivalent water ice layer (density = 0.92 g/cm3) deposited on the surface if spread evenly over a circle 1.8 km in diameter. 2. Relevant equations Assume that 2701 kg of Aerozine-50 was used in each deceleration, and that each component underwent ideal combustion according to the following unbalanced reactions: N2H4+N2O4→N2+H2O (1) CH3()2N2H2+N2O4→N2+H2O+CO2 (2) 3. The attempt at a solution All I'm asking is if the ice layer is going to be cylinder or a sphere? I know how to do the problem i'm just not sure which they'd like. |
| Oct1-10, 02:29 AM | #2 |
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You have wrong parentheses in dimethylhydrazine, it should be (CH3)2N2H2.
Assume cylinder - at this scale surface of the Moon can be considered flat. -- chemical calculators - buffer calculator, concentration calculator www.titrations.info - all about titration methods |
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