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Nitrogen gas when combined with hydrogen gas forms ammonia gas according to the following equation N2(g) + 3H2(g) = 2NH3(g). Delta H(rxn)=-56 kJ. The delta H(rxn) was determined using Hess's Law and the following three related reactions:
2NH3(g) + 4H2O(l) = 2NO2(g) + 7H2(g) delta H=-68kJ2NO2(g) = N2(g) + 2O2 (g) delta H= ?
H2O(l) = H2(g) + (1/2)O2(g) delta H = -21kJ
Determine the unknown delta H.
if i have 7.0 moles of gas at a pressure of 0.10 atm and at a temperature of 50.1 degrees c in a balloon what is the
Draw the repeat unit of the copolymer used for artificial skin growth, which is formed by condensation polymerization of lactic acid and glycolic acid.
Calculate the number of moles of oxygen gas produced from the completely catalyzed decomposition of 6.20ml sample of a 3.5% solution of H2O2. The density of the 3.5% solution of H2O2 is 1.01 g/ml.
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its ground state absorbs 2.50 times as much energy as the minimum required for it to escape from the atom. Calculate the deBroglie wavelength of the emitted electron
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where the atmospheric pressure is 1.00 atm. the balloon rises to an altitude of 20,000 m where atmospheric pressure is 65 mmhg and the temperautre is 210k. What is the volume of the balloon at 20,000m?
Calculate the number of grams of sulfuric acid in 0.460 of battery acid if the solution has a density of 1.27 and is 37.8 sulfuric acid by mass.
If .43 g of aluminum foil was dissolved in sufficient 3M KOH solution, and the solution was acidified with 4M H2SO4, what was the theoretical yield of KAl(SO4)2 * 12H2O? If only 5.87g of alum were obtained as product from the synthesis described
Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with Ar
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