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An aerosol spray can with a volume of 250 mL contains 2.30 g of propane gas C3H8 as a propellant. If the can is at 25deg C, what is the pressure in the can? What volume would the propane occupy at STP? The can says that exposure to temperatures above 130 deg F may cause the can to burst. What is the pressure in the can at this temperature? (three questions in total)
The Ka of butyric acid, C3H7COOH is 1.5 x 10-5. What is [C3H7COO-] in a 0.397 M solution of C3H7COOH
what is the relative probability (pB/pA) that the protein wil be in state B vs state A?
liquid stream containing ethane and propane enters a flash chamber operated at 80 oF and 300 psia. Leaving the chamber, the vapour stream flow rate leaving the chamber
How many kJ of heat are required to produce 13.7g NO2, by 2NO2+ O2 --> 2NO2. the heat of reaction is 113.04
What mass of F2 is needed to produce 167 g of PF3 if the reaction has a 77.0% yield?
If the aqueous solution in the above problem with ammonia was also allowed to equilibrate with an atmosphere containing 10 3.5 atm carbon dioxide
A mineral containing iron(II) sulfide but no other sulfides is treated with excess hydrochloric acid to produce hydrogen sulfide. If a 3.15 g sample of the mineral yields 448 mL of hydrogen sulfide gas
The volume of the base required to neutralize the acid was 47.14 mL. Aqueous silver nitrate was then added to precipitate the Cl- and Br- ions as AgCl and AgBr. The mass of silver halides obtained was 0.9974 g. What are the molarities of HCl and H..
The unknown has peaks at 2818.38, 2716.12, 1682.14, 1622.34, 1491.16,1450.65, 1359.99, 1304.05, 1188.30,1014.69, 925.95,883.51, 758.19, 698.39.
what are the heats of formation of the following species.
Find the mass of the substance and the volume of a gas in a reaction - determine the mass of solid ammonium nitrate that must be used to obtain 0.145 L of dinitrogen oxide gas at STP.
what is the total volume occupied by the metal and the water in the graduated cylinder? 2.How could the density of a substance that was soluble in water, be determined?
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