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In a certain experiment 5.875 g of sodium oxide were obtained from a reaction of 4.598 g of sodium metal with excess oxygen gas what is the % yield of sodium oxide?
Calculate the standard free-energy change for the following reaction at 25 degrees C. 2Au^3+(aq) + 3 Cr(s) 2Au(s) + 3Cr^2+(aq) delta G^degree= ? KJ/mol
What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and respectively.
What is the molar mass of an unknown dipotric acid if 65.0 mL of a 0.15 M solution of KOH was needed to reach the second equivilance point in the titration of 0.03 g of the acid.
determine the molecule weight of the liquid and the density of the vapor under these condition?
if you burn 33.7g of hydrogen and produce 301 g of water, how much oxygen reacted?
Polyunsaturated fatty acids (PUFAs) have several carbon-carbon double bonds as present in beta-carotene
If the same amount of sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide were combined , but the solvent was used to afford a homogenous reaction mixture
What are bonding theories? Why are they important? What may they be used for. HI has a force contents of 314 Nm^-1 and a bond length of 160.92 pm.
Calculate the number of moles of liquid propane that can be stored in the same volume if the density of the liquid is 0.590 {rm{g}}/{{rm{mL}}}.
What is the concentration of H2SO4 present if 42.3 mL of the base is needed to reach the equivalence point?
A zero-order reaction has a constant rate of 1.90×10-4 . If after 40.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
Equilibrium constant (Kc) is 1 and inital concentrations of A and B are Cao and zero (Cbo = 0), respectively. Da is equal 2 for each reactor in series configuration. What is the overall conversion of A for above equilibrium reaction?
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