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Coal as fired, contains 2.5% moisture. On the dry basis the coal analysis is as follows: carbon -80%, hydrogen- 6%, oxygen-8%, ash- 6%. The flue gas analysis. The few gas analysis shows as carbon dioxide 14%, carbon monoxide 0.4%, oxygen 5.6% and nitrogen 80%. The air used has a dew point of 50°F. The barometer shows 29.9 inches of mercury. Calculate the dew point of the stack gas.
An analysis of fatty acids is desired. These fatty acids have boiling points in excess of 275O C. The sample is extracted with methanol to obtain a solution that only contains the fatty acids.
If 20.0L of neon gas exerts a pressure of 125 psi at 423 k , what is the number of moles of gas?
When 10.0 g of NH3 reacts, the actual yield of N2 is 8.50 g. What is the percent yield?
A certain reaction has an activation energy of 70.0 Kj/mol and a frequency factor of A1 = 4.80×1012. A) What is the rate constant, k , of this reaction at 30.0 C
A 1.43-L flask is filled with propane gas (C3H8), at 1.00 atm and -23.0°C. What is the mass of the propane in the flask?
What is the maximum number of unpaired electrons an atom can have in this series? Will thsi be a new record for atoms in the periodic table?
Calculate the mass of water vapor produced when 6.00 L of propane (C3H8) gas undergo complete combustion at a temperature of 250C and a pressure of 1.00 atm.
Calculate K for the reaction between one mole of dinitrogen oxide gas and oxygen gas to give dinitrogen tetroxide gas
After equilibrium was established, which of the ions listed below was present in the greatest concentration?A) H2C6H5O7^-
Explain, using resonance as part of your answer, why a hydrogen adjacent to carbonyl groups (a-H's) are acidic. b. Give the mechanism for the Claisen ester condensation reaction.
What is the value of the equilibrium constant for the cell reaction below at 25°C? E°cell = 0.30 V
How many grams of ammonium sulfate are needed to make 0.3500 L solution at a concentration of 5.000M.
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