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N2(g) + 3 H2(g) ↔2NH3(g)
Starting with initial concentrations of 0.400 M and .600 Mconcentrations of nitrogen and hydrgon respectively, the abovereaction is allowed to come to equilibrium. It is found that theequilbrium concentration of NH3 is 0.149 mol/L. What is the equilibrium concentration of N2 ?
Element Z has two naturally occurring isotopes Z-79 ( 78.918 amu) and Z-81 (80.916 amu) . Calculate the atomic mass of element Z given the abundance of the Z-81 is 49.31 %
piece of silver when placed in a cup of 200 mL of water raises the water's temperature from 25.0 C to 31.5?
You perform column chromatography on a mixture of reaction products which shows two spots on TLC. However, under the column conditions you chose those two compounds do not separate.
A photon having E = 46.9 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon
At what temperature will a 1.3 g sample of neon gas exert a pressure of 491 torr in a 5.9 L container?
Consider a glass of 254 mL of water at 25°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
A carbon-hydrogen-oxygen containing compound yields 1.029 g CO2 and 0.198 g H2O in a combustion analysis( note that this means O2 was added the overall reaction) what is the empirical formula? if the Molar mass is 138.16 what is the molecular form..
A mixture of camphor and water boils at approximately 99.1?C. At this temperature the vapour pressure of water is 736 mmHg. Calculate the percentage of camphor and water in the steam distillate by number of moles.
A mineral has a face centered cubic arrangement of its atoms and an edge of the unit cell is 565.685 pm. the density of this mineral is 11.008 g/mL. Determine the radius of an atom, the packing efficiency, and molar mass.
At a Concentration of 1M, the weak acid HN0 is 2% ionized and the pH of the solution is 1.7 . What happens when KNO2(s) is dissolved into the solution: The extent of HNO2 ionization = Increases or decreases? The concentration of H+ = Increases or ..
Determine the geometry about each interior atom in each molecule. (Skeletal structure is indicated in parentheses) CH3NH2(H3CNH2), CH3CO2CH3(H3CCOOCH3, both O atoms are attached to second C), NH2CO2H (H2NCOOH both O atoms are attached to C)
Calculate the molar concentration of a potassium chloride solution if 2.4 liters contains 2.00 moles of KCl. Calculate the molar concentration of 15 frams of KCl in 1.5 liters of solution.
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