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A particular natural gas consists, in mole percents, of 83.0% CH4 (methane), 11.2% C2H6 (ethane), and 5.80% C3H8 (propane). A 385-L sample of this gas, measured at 21C and 739 mmHg, is burned in an excess of oxygen gas.
CH4=-890.3C2H6=-1559.7C3H8=-2219.1kJ/mol
Atomic orbitals merge into molecular orbitals as the atoms move towards each other. What happens with molecular orbitals when the molecule
5.30 ml of 18-nonadiene d0.74 gml allowed to react with 5.25 g of hydrogen bromide gas. two possible products can be
Which of the following types of radiation is composed of particles with a charge and mass identical to that of an electron?
A solution is made by mixing equal masses of methanol, CH4O, and ethanol, C2H6O. Determine the mole fraction of each component to at least three significant figures.
What is the theoretical yield of calcium carbonate if 2.05 grams of calcium chloride dihydrate reacts with excess sodium carbonate according to the balanced chemical reaction shown below?
6 moles of a mixture that contains 0.7 mole fraction propane (C3H8) with the remainder methane (CH4). It is burned in air with a 10% excess of oxygen.
At 25°C the heat of fusion of aluminum is 10.6 kJ/mol and the heat of sublimation is 326.4 kJ/mol. What is the heat of vaporization of aluminum at 25°C?
the volume of a sample of a gas at 273 degrees celsius is 200.0 l. if the volume is decreased to 100.0 l at constant
What is the total pressure on a 6.00 L flask which contains 0.127 mol of H2 gas and 0.288 mol of N2 gas at 20 degrees C. What is the molar fraction of H2 in the gas mixture
Identify the set of stoichiometric coefficients that balance the reaction equation for the combustion of octane. C8H18+O2--->CO2+H2O
Explain why two layers formed when 3 M NaOH was added to the ether solution after the initial separation. What solvents do the two layers represent? Which solvent forms the upper layer? Why?
Dichloromethane has a specific gravity of 1.33: a) What is the mass (kg) of 75 liters? b) What is the volumetric flow rate (L/min) of the dichloromethane entering a storage tank if the mass flow rate is 960 kg/min.
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