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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.
When a 23.7 mL sample of a 0.362 M aqueous nitrous acid solution is titrated with a 0.310 M aqueous potassium hydroxide solution, what is the pH after 41.5 mL of potassium hydroxide have been added
The air pollutant NO is produced in automobile engines because of the high-temperature reaction below. If the initial concentrations of N2 and O2 at 1000 K are both 1 M
1.a student measures that the solution freezes at temperature of -7.24 degree celsius when 64.311 f of an unknown
what weight of A would be removed from a solution of 10g of A in 100mL of water by a single extraction of 100mL lingroin. what weight of A would be removed by four successive extractions with 25mL portions of lingroin
What is the molarity of a solution in which 55.49g calcium chloride is dissolved in enough water to make 500mL of solution
Malonic acid is a diprotic acid used in the production of pharmaceuticals. A 0.6561 g sample of a m ixture of malonic acid (C3H4O4) and NaCl was titrated to the equivalence point with NaOH. The titration required 54.94 mL of 0.1009 M NaOH. Malonic..
If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point, what is the weight percent of oxalic acid in the mixture. Oxalic acid and NaOH react according to the equation H2C2O4 (aq) + 2 NaOH(a..
A urine sample was found to have a pH of 5.83. What would be the ratio of the unprotonated form, A, to the protonated form, HA, for uric acid in this urine sample?
Calculate the vapor pressure lowering of a solution of 2.80 g of aspirin (molecular weight = 180.15 g/mol) in 45.0 g of methanol (CH3OH) at 21.2°C.
The Ksp of AgCl at 25 oC is 1.6 x 10-10. Consider a solution that is 1.0 x 10-3 M CaCl2 and 1.0 x 10-7 M AgNO3. 1. Ksp and a precipitate will not form.
Determine the molecular geometry of each of the following molecules
When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 13.0 oz drink from 74 degree F to 31 degree F
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