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6NaN3+Fe2O3----->3Na2O+2Fe+9N2 a) What is the number of moles of iron produced if only 4 moles of NaN3 are consumed? b)Determine the mass of Na2O produced if only 25g of iron (iii) oxide are available. c)how many grams of sodium nitride are required to inflate an air bag with nitrogen gas to a volume of 46.0 Liters at 298k and 1.0atm d) How would the amount of sodium nitride change if the same airbag were to inflate at ta much higher elevation? more, less, same:
a first order reaction has a half-life of 1.34 x 10-3 hours. if the initial concentration of the reactant is 8.00m what
What is the mole fraction of pentane in a pentane-hexane solution that has a vapour pressure of 308 torr at 25 oC? (At 25 oC the vapour pressure of pure pentane is 511 torr and that of hexane is 150 torr.)
We have a solution that is in equilibrium with solid Ag2SO3 (ksp=1.5x10^-14), and buffered at pH=8.00. The sulfite anion (SO3(2-)) is the conjugate base of the bisulfite anion (HSO3-), Calculate the concentrations of all chemical species present i..
Compound X, C14H12Br2, is optically inactive. On treatment with strong base, X gives hydrocarbon Y, C14H10. Compound Y absorbs 2 equivalents of hydrogen when reduced over a palladium catalyst to give Z (C14H14)
The solubility of Ag2CrO4 (331.74 g/mol) is 0.0435 g/L at 25C. What is Ksp for silver chromate?
We add some solid silver chromate (Ag2CrO4, Ksp = 1.100x10-12) to a solution of 1.2202 M Li2CrO4. After equilibrium is achieved, what is the pAg (=-log[Ag+]) of this solution
what is the lewis dot structure of
A gas in a container is expanded by 0.25 of the original volume to a total of 15 dm^3 at constant temperature. The resultant pressure is 20 bar. What was the original pressure before the compression assuming perfect gas behavior
It takes 46.8 hours for nitrogen-filled balloon to shrink to a quarter of its original volume by effusion though a very small hole. If the same balloon had been filled with helium,
In the series HF, HCl, HBr, HI, which is the strongest acid?
how many liters of ethane measured at 15.0 degrees celsius and 719 torr must be burned to liberate 2.89 x 104 kj of
Why is it important to the place the thermometer bulb at in the lower part of the Hickman still head? What will happen if you place it either a)too low
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