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Question: He and O2 gases are mixed. A 40L He cylinder with 10atm pressure is connected to a 10 L O2 cylinder with 5atm pressure. The valve between them is opened and the gases completely mix. What is the mole fraction of O2?
Calculate the amount of energy in the form of heat that is produced when a volume of 2.73 L of SO2(g) is converted to 2.73 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 atm and 25.0 °C. Assume ideal gas behav..
The Occupational Safety and Health Administration has set the limit on the maximum percentage of carbon dioxide (CO2) in air a worker can breathe at 0.500% by mole.
Derive explicitly equations for number and weight average molecular weight in a linear polycondensation reaction of A-B type monomers.
Suppose you analyze a sample of fertilizer by the procedure of this experiment and obtain 1.000g of MgNH4PO4 * 6H20. Calculate the equivalent mass of P2O5 initially in the sample.
When optically active B was treated with CrO3 in pyridine, an optically inactive sample of A was obtained. Heating A with hydrazine in base gave hydrocarbon C, which, when heated with alkaline KMnO4, gave carboxylic acid D. Identify compounds A, B..
vinegar is a 5.0 solution by weight of acetic acid ch3co2hin water. given that the ph for acetic acid is 2.41 the
The activation energy of a certain reaction is 76.4 kJ/mol. How many times faster will the reaction occur at 42C than at 0C
Complete the molecular equations for the precipitation for the following equation(please include the states) Al(NO3)3+3NH4OH
A fully animated PowerPoint presentation explaining the molecular structure of fats, the difference between saturated and unsaturated fats and why bromine can be used to test for fats and how saturated they are.
Gold can be hammered into extremely thin sheets called gold leaf. If a 202-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft multiplied by 1.0 ft, what is the average thickness of the sheet in meters?
A tank contains 40 lb. of air, 20 lb. of CO2 and 30 lb. of SO2. Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixt..
The mass of calcium fluoride that results from the reaction of 3.00 grams of calcium and 2.00 grams of fluorine is 4.02 grams. What is the percent yield?
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