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Freon-12, CF2Cl2, is a refrigerant and aerosol propellant suspected of accelerating the loss of ozone in the upper atmosphere. It is prepared by reacting gaseous carbon tetrachloride, CCl4, with hydrogen fluoride, HF. In addition to Freon-12, gaseous hydrogen chloride, HCl, also forms. Write a balanced chemical equation for this reaction and determine how many grams of CCl4 are needed to prepare 16.0 L of Freon-12 at a temperature of 27 °C and a pressure of 1.20 atm.
Calculate the volume of 1.94×10-3-M H2SO4 solution needed to provide 4.83×10-3 g of H2SO4.
If 750 grams of ammonia and 750 grams of oxygen gas were mixed, what maximum mass of nitrogen monoxide could be produced
A mixture of gas contains 46.3 % methane, 37.2% ethane and 16.5% propane(by mass). A 477g sample of the gass is burned with exces oxygen
What is the hybridization or what atomic orbitals are used by nitrogen in ammonia?
what volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? how much sulfuric acid was in excess
Calculate the molarity of each of the following solutions. (a) 23.0 g of ethanol (C2H5OH) in 545 mL of solution (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.20 M buffer solution at pH 4.5? Enter your answer to two significant figures.
In a 0.400 mol/kg aqueous solution of sucrose, the molarity of sucrose is 0.282 mol/dm3 and the density of water is 0.998 g/cm3 at 20oC and 1 atm. Estimate the osmotic pressure of this solution.
in reacting anthracene and maleic anhydride, does the structure of the product make sense in terms of the aromaticity of anthracene and the product?
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 degrees C. At what temperature does benzene boil when the external pressure is 490?
The activation energy for a given reaction is kJ/mol. What is the ratio of the rate constants for this reaction when the temperature is decreased
Air coming from a painting operation contains 10.0 wt% acetone. The total flow rate of the air/acetone stream is 1.00x103 lbm/min. This stream is sent to a scrubbing system where it is mixed with water.
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