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The Keq=4.2 for the reaction: H2(g) + CO2(g) -- H2O(g) + CO(g)at 1650degrees C. Initially 0.80mole H2 and 0.80mole CO2 are injected into a 5.0-L flask. Compute the concentration of each species at equilibrium.
what type of phase change does a substance undergo at .750atm and 30 degrees celsius
Solid Lithium hydride is added to water. Find the complete molecular, complete ionic, and net ionic formulas.
What is the pH of a solution in which we have added 40.0 mL of 0.100 M NaOH to 100.0 mL of a 0.100 M solution of acetic acid in a titration. Assume volumes are additive.
Calculate the concentration in molarity of argon in a fish tank at 25 degrees Celcius, if the pressure is 1.15atm and the mole fraction of argon in the atmosphere is 0.093. The KH for Ar at 25 degrees Celcius is 1.5*10^-3M/atm.
state the arrhenius bronsted-lowry and lewis definitions of acids and bases. given an acid-base reaction equation pick
Describe how you would purify p-nitrobenzoic acid from a mixture of a 9.0 g of p-nitrobenzoic acid and 2.0 g of o-nitrobenzoic acid using recrystallization. Tell which solvents you would use and how the components would get separated.
Calculate the molality of the solution and the 95% CL, and write the final result with correct format.
Calculate Delta E for a system that absorbs 744.0 kJ of heat from its surroundings and does 277.0 kJ of work on its surroundings.
Calculate ?G at 25 ºC for a reaction in which Ca2+(aq) combines with CO32-(aq) to form a precipitate of CaCO3(s) if the concentrations of Ca2+(aq) and CO32-(aq) are 0.023 M and 0.13 M, respectively. (?Gº = -47.94 kJ)
When two molecules of methanol react with oxygen, they combine with three O2 molecules to form two CO2 molecules and four H2O molecules. How many H2O molecules are formed when 5 methanol molecules react
Consider the reaction Pb(s) + 2H^+(aq) ? Pb^2+(aq) + H2(g). If the hydrogen gas pressure is maintained at 1.00 atm and the lead(II) ion concentration is 0.025 M, find the pH at which this reaction is at equilibrium
Why was anhydrous, not wet, diethyl either used in the prepeatation and reaction of the Grignard reagent?
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