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You will evaluate two chemical processes which are used to lift rockets from the ground into space. Lower stage rocket fuel is the reaction of hydrogen gas with oxygen gas to create water. This is used in the troposphere to avoid adding toxic gasses to the environment in which we live. However, once safely above the tropopause (what's that?! And where is it?), another reaction is useful: that of hydrazine and nitrogen tetroxide are used. Why aren't these used in the troposphere? Why are they able to be used in the stratosphere and above? Describe these processes, provide balanced chemical equations for each, and detail the energetics of both. Please cite all credible sources, and avoid the use of wiki sites. Your project should be 3-5 pages in length.
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
Naphthalene is a hydrocarbon that is commonly found in mothballs. Naphthalene is 93.75% carbon by mas. If Naphthalene's molecular formula is twice its empirical formula , What the molar mass
what is the mechanism of the dehydration of 2-butanol. Why is sulfuric acid rather than HCl used to catalyze the reaction.
500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete?
Explain why the reaction of 2,4 dinitrochlorobenzene with piperidine or morpholine is second order even though there are threee reactant molecules in the overall equation for the reaction
liquid butane c4h10 is stored in cylinders to be used as a fuel. suppose 30.4 g of butane gas is removed from a
The rest mass of a proton is 1.0072764669 u and that of a neutron is 1.0086649156 u. The 75As nucleus weighs 74.92160 u. Calculate the total binding energy of the nucleus.
It is estimated that more than 5 billion metric tons of CO2 is added to the atmosphere each year. Assume that CO2 is an Ideal gas at 25 oC and 1 atm.
Solution 1.0C 1xF 1.8F 32F2 to carry out the desired conversion. When the absolute temperature is 400 K, what is the Fahrenheit temperature?
The mitochondrion has two membranes, the inner and outer- the outer membrane is porous and enables many molecules to freely diffuse. The inner membrane is different from the outer membrane as it is only penetrable to o2, co2, and h2o
Problem- A sample of gas occupies a volume 185.5 mL at STP. What pressure, in torr, would it exert if it is transferred to a gas bulb with a volume of 255.5 mL in which the temperature is maintained at 34.5 degree Celsius
question suppose 100.0 ml of a 0.03750 m solution of the strong base baoh2 is titrated with a 0.4540m solution of the
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