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Lexan is a plastic used to make compact discs, eyeglass lenses, and bullet-proof glass. One of the compounds used to make Lexan is phosgene (COCl2), an extremely poisonous gas. Phosgene decomposes by the reaction
COCl2(g) <=>CO(g) + Cl2(g)
for which Kp= 6.8x10^-9 at 100 degrees C. If pure phosgene at an initial pressure of 1.0 atm decomposes, calculate the equilibrium pressures of all species.
Equal initial pressures of hydrogen and nitrogen are added to a container at 298K where they react as in question 1. (question 1 is at the end) a. If the equilibrium pressure of hydrogen is 1.5 atm, determine the equilibrium pressures of nitrogen a..
one balloon contains 2 liters of nitrogen at a pressure of 735 torr. another balloon contains 1 liter of oxygen at a
would the equilibrium constant for the formation of Cu(OH)2 (s) be greater or lesser than the equilibrium constant for the formation of Cu(NH3)4^2+ (aq)? Please explain your reasoning.
Calculate the heat evolved when 231 g of white phosphorus (P4) burns in air according to the equation below.
5.0 kg of hydrogen is reacted with 31 kg of oxygen. The experiment yields 28 kg of water. Calculate the percent yield of the reaction.
What is the wavenumber in cm-1 for the HOMO to LUMO transition predicted by PM3, What value of ? can you infer, that would bring the HMO method into agreement with the more advanced Extended Huckel method?
dissolved in water to produce 25.0 mL of a solution with pH = 3.28. Determine the ionization constant of the acid.
What dilution would be necessary to get the absorbance of 62.2 down to 3.1
A 0.7995 g sample of a compound containing only uranium and chloride is dissolved in water and excess aqueous silver nitrate is added to precipitate 0.9982 g of silver chloride . Calculate the empirical formula of the compound.
A vessel contains 3.00 mol of Ar, 5.50 mol of CF4, and 1.50 mol of C2H6 gases. If the partial pressure of Ar is 1.440 atm, what is the total pressure inside the vessel
Number of protons & the number of neutrons in the nucleus of the element boron and potassium and the number of electrons in their 1st & 2nd quantum shells?
What is ?H in kJ for the combustion of 2.86 L of benzene producing CO2(g) and H2O? Assume that the heat of combustion of benzene is -4.18 x 103 kJ/mol. Enter your answer with three significant figures in exponential format (1.23 x 104 = 1.23E4).
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