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A fuel gas containing 75% methane, 15% ethane and 10% propane by volume flows to a furnace at a rate of 1200m^3/hr at 15'C and 200kPa, where it is burned with 12% excess air. Calculate the required flow rate of air in SCMH(standard cubic meters per hour).
The spectrophotometer is to be set at 447nm. What experiment could you do, what data would you collect
Calculate the entropy change for each of the following reactions. Justify why these are physically reasonable answers.
The temperature of a 150 gram drinking hlass decreased from 25 to 14 * C as 200 grams of water were added
the elemental mass percent composition of ascorbic acid (vitamin C) is 40.92% C, 4.58% H, and 54.50% O. Determine the empirical formula
If 1.00 g sodium bicarbonate and 1.00 g citric acid are allowed to react, how many grams of carbon dioxide will form?
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 8.10 nm in diameter?
How many grams of PBI2 will precipatate by the addition of excess KI solution to 50.00 mL of 1.22 M Pb(N03)2
What is the molarity of aqueous silver nitrate if 50.00 mL of AgNO3 reacts with 25.0 mL of 0.100
if the reaction produces 5.72 grams of a compound called magnesium ammonium phosphate,MgNH4PO4. what is the percentage of phosphorus in the original plant food sample?
If 2.45 g of N2H4 reacts and produces 0.650 L of N2, at 295 K and 1.00 atm, what is the percent yield of the reaction?
in an organic compound % of carbon is 75.2%,% of hydrogen is 10.75 and % of oxygen is 14.03..Find the empirical formula of compound?
Define three carbon atoms bear the unpaired electron, The pentadienyl radical, CH2=CH-CH=CH-CH2, has its unpaired electrons delocalized over three carbon atoms
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