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Nitrous oxide is a significant greenhouse gas. The global sink N2O is 12.6 T g N yr-1. The mixing ratio is 559.5 micrograms/m3 as well as the lifetime of N2O is about 128 years. Use an average surface pressure of 986 hPa to compute mass of atmosphere.
Suppose polyethylene molecules in a solution can exist in either a random-coil conformation or in a fully stretched-out conformation. The stretched-out conformation is 2.4 kJ/mol higher in energy than the random-coil conformation.
What volumes of COsub2 and NHsub3 a 200. atm and 450. degree C are needed to produce 2.50kg of urea, assuming the reaction goes to completion
When you follow the manufacturer's specifications, 1.0 galon of a latex, gloss enamel paint covers 350 square feet of a sealed surface. What is the average thickness in millimeters of a coat of this paint
The strong acid soultion of HCl has pH of 1.22. What is the concentration of [H+], [Cl-] and [HCl]
What mass of Na2CO3, in grams is required to completely react with 50 ml of 0.125 m HNO3 balance the equation: NaCO3(aq)+HNO3(aq) -->NaNO3(aq)+CO2(g)+H2O(l)
consider the following reaction where x represents an unknown element6xs 2b2o3s rarr b4x3s 3xo2gif 175 g of x reacts
A set of two gas bulbs, with volumes of 500 mL and 300 mL, are connected by a closed stopcock. The 500 mL bulb contains 450 torr of Ne gas, and the 300 mL bulb contains 150 torr of Cl2 gas
Glycerol esterified with three fatty acids is called a sphingolipid d. Waxes are esters of long-chain alcohol and long-chain fatty acid e the short hand notation for fatty acid
question a gas at 30 degrees c and 600 mmhg occupies a volume of 412 cm3. what is the volume in cm3 that the gas will
choose the answer that has the following compounds correctly arranged with respect to acid catalyzed hydrolysis.
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 9,494kJ of heat is needed from the combustion
an An automobile gasoline tank holds 42 kg of gasoline. When the gasoline burns , 168 kg of oxygen are consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced
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