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Acetylene gas (C2H5) at 25 degrees C is burned throughout a steady-flow combustion process with 30 percent excess air at 27 degrees C. It is observed that 75,000kJ of heat is being lost from the combustion chamber to the surroundings per kmol of acetylene. Presuming combustion is complete determine the exit temperature of the product gases.
how many liters of hydrogen gas is formed from the complete reaction of 18.9 g c? assume that the hydrogen gas is
Iron has a reported average atomic mass of 55.85 amu. If iron has two isotopes, one of which has 29 neutrons and an isotopic abundance of 57.50%, what is the mass of the other isotope?
How much limestone in kilograms is required to completely neutralize a 4.2×109L lake with a pH} of 5.6
If the same amount of sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide were combined , but the solvent was used to afford a homogenous reaction mixture
when a antacid tablet dissolves in water the fizz is due to a reaction between sodium hydrogen carbonate nahco3 also
The reaction was allowed to proceed for 15 minutes, and the rate was measured again. What would you predict about the second measured rate relative to the first? The reaction rate would be faster. The reaction rate would be slower. The reaction ra..
A 12 liter tank contains helium gas pressurized to 160 atm. What size tank would be needed to contain this same amount of helium at 1 atm
For the reaction between H2 and NO in the gaseous state, experiments showed the following results: When the initial concentration of hydrogen doubled (keep [NO]0 the same), the initial rate of reaction doubled
Para-amino benzoic acid, PABA, HC7H6NO2 is used in some sunscreen agents. A solution is made by dissolving .263 mol of PABA in enough water to make 750mL of solution. The solution has [H+]=2.6E-3 M. Explain what is the Ka for PABA
Explain what are the effects of consuming a diet made up mostly of fats? select all the correct answers. 1. Acetone concentration increases 2. The citric acid cycle becomes overwhelmed with intermediates
Suppose that a radiologist who is 4.0 m from a small, unshielded source of radiation receives 3.4 units of radiation. To reduce the exposure to 0.34 units of radiation, to what distance from the source should the radiologist move?
For the following pairs of orbitals, indicate which orbital is lower in energy, and give a brief explanation why. a) sulfur 3p vs. sulfur 3d
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