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A quantity of n2 occupies a volume of 1.0L at 310K and 1.4 atm. The gas expands to a volume of 3.3L as the result of a change in both temperature and pressure. Find the density of the gas at these new conditions.
How many atomsof carbon are present in 34.5 grams of caffeine?
Determine the molar concentration of CH 3 COOH present in the vinegar?
which of the following compounds is expected to have the strongest ionic bonds. a) RbF b) NaF c) NaI d) CsBr e) CsI
Given the thermodynamic data in the table below, calculate the equilibrium constant (at 298 K) for the reaction: 2SO2 + 02 --------> 2SO3 dH -297 , 0, -395 dS 249, 205, 256 ( in order of problem )
At 20 degrees C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 52.9 torr at 20 degrees C.
What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the following equation?
Will a precipitate of magnesium fluoride form when 300. mL of 1.1 × 10^-3 M MgCl2 are added to 500. mL of 1.2 × 10^-3 M NaF? [Ksp (MgF2) = 6.9 × 10^-9]
What did the student do wrong? If the solution had been prepared correctly to the desired 1.0 M concentration, what volume of this stock should be diluted to prepare 100.0 mL of a 1.0 mM working solution?
ethyl acetate:petroleum ether was used to elute the chlesterol before dichloromethane
In S8 + 12O2-> 8SO3, if 10 grams of sulfur is used, how many grams of sulfur trioxide are produced?
Calculate delta g rxn and e cell for a redox reaction with n=3 that has an equillibrium constant of K
The ultimate analysis of a coal is 80% carbon, 4% hydrogen, 2% oxygen, and the rest ash. The flue gases are 60 F and 14.7 psia (15.6 C and 101.3 KPa) when sampled and are 80%, nitrogen, 12% carbon dioxide
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