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The ultimate analysis of a coal is 80% carbon, 4% hydrogen, 2% oxygen, and the rest ash. The flue gases are 60 F and 14.7 psia (15.6 C and 101.3 KPa) when sampled and are 80%, nitrogen, 12% carbon dioxide, 7% oxygen and 1% carbon monoxide by volume How much air is required to burn 1lbm (1kg) of coal under these conditions?
Calculate the heat released as 115 grams of water cool from its normal boiling point (100 degrees C) to a temperature of 33 degrees C.
What mass of sucrose should be combined with 468 of water to make a solution with an osmotic pressure of 8.75 at 295 ? (Assume the density of the solution to be equal to the density of the solvent.)
Determine the molecular formula of the oxide of phosphorous when it is in its gaseous state.
Adipic acid with two molecules of ethylamine, Write an equation for the formation of the salt that could be formed by reaction of one molecule of adipic acid
Which sample contains the largest number of molecules?
A stock solution is prepared by adding 20 mL of 1.21 M AlCl3 to enough water to make 72 mL. What is the Al3+ concentration of 30 mL of the stock solution
In a seperate trial the student puts 214 mL of the same liquid into the same flask at the same conditions. What will the pressure measure (in kPa) in the second trial?
The atomic radius of O is smaller than the atomic radius of Se. What is the effective nuclear charge for the valence electron(s) in O and Se
At 700.°C, the total pressure of the system is found to be 3.63 atm. If the equilibrium constant KP is 1.52, calculate the equilibrium partial pressures of CO2 and CO.
Consider an ordinary 8 fluid oz. glass of water (H2O). Suppose, hypothetically, that all of the water molecules in the glass could be marked.
If the acid dissociation constant, Ksuba, for an acid HA is 8 x 10^-4 at 25 degree C, what percent of the acid is dissociated in a 0.50 M solution of HA at 25 degree C?
oleci acid has following compostions : 76.54%C, 12.13%H, 11.33% O. If the experimental molar mass is 282.g/mol, what is the molecular formula of oleic acid?
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