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The reaction of solid dimethylhydrazine ((CH3)2N2H2) and liquefied dinitrogen tetroxide (N2O4) has been investigated as a rocket fuel; the reaction produces gaseous carbon dioxide (CO2) nitrogen (N2) and water vapor (H2O) which are ejected as exhaust gases. In a controlled experiment, solid dimethylhydrazine reacted with excess nitrogen tetroxide and the gases were collected in a closed vessel until a pressure of 3.2 atm and temperature of 359 K were reached. What is the partial pressure of CO2? Answer in units of atm. 024 (part 2 of 3) 10.0 points What is the partial pressure of N2? Answer in units of atm. 025 (part 3 of 3) 10.0 points What is the partial pressure of H2O? Answer in units of atm.
how does one calculate the percentage yield of sodium peroxoborate hexahydrate if the product was 5.4854g and the intial sodium tetraborate decahydrate was 3.0354g
A reference sample of the same size from a plant alive today has a carbon-14 activity of 160.0 counts/min. If carbon-14 has a half-life of 5730 years and what is the age of the plant fossil in years
What is the temperature of 0.600 mol of gas at a pressure of 1.5 atm and a volume of 12.1 L
What is the molar solubility of AgCl in water. For AgCl, Ksp=1.8 x 10-10. Give your answer in moles per litre, accurate to two significant figures
The ratio of an enzyme catalyzed reaction rate to the uncatalyzed rate (i.e. kcat/ kuncat) is equal to 10,000. Compute the amount, in kj/mol, by which the activation energy for the reaction is lowered by the enzyme. Assume the free energy of the reac..
What is the Volume of 0.8 mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
A 5g packet of an effervescing stomach antiacid contains 2.68 g of calcium hydroxide to neutralize stomach acid. What volume of stomach acid (containing 0.010mol/L HCl) could be neutralized
How do you solve this? what formulas do you need? how do you go from n=3 to n=5? what frequency of light is required to cause an electron in the helium ion (He+) to undergo a transition from level n=3 to level n=5?
Sulfuryl chloride, SO2Cl2, decomposes by first-order kinetics, and k = 2.81 x 10-3 min-1 at a certain temperature. Determine the half-life for the reaction.
Subsequent to mixing the final temperature of the solution was 26.35oC. The total mass of the solution was 99.85 g. Compute DH of the reaction assuming the specific heat of the solution to be 4.18 J g-1deg-1.
carotenoids present in all organisms capable of photosynthesis extend the range of light absorbed by the organism. they
What is the molarity of the Na 2 S 2 O 3 solution if a 0.150 g sample of KIO 3 required 10.7 mL of Na 2 S 2 O 3 solution for its standardization?
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