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Ammonia gas is produced by reacting hydrogen gas with nitrogen gas. To produce 50.0 g of ammonia gas using air as your source of nitrogen gas, what volume of air is required if the air is introduced at 29°C and 745 mmHg? (the mole fraction of nitrogen gas in air is 0.781)
analyze run-off water for the presence of a.) heavy metals; b.) BTX( Benzene-toluene-xylenes); and c.) PNA ( polynuclear aromatic compounds).
You wish to extract an organic compound from an aqueous phase into an organic layer (3 to 6 extractions with a separatory funnel). With regard to minimizing the number of transfer steps,
the triangleG and triangleG0! both refer to the free energy change in the steady state reaction. steady state means that the concentrations of substrates and products are fixed or constant. all of the following statements about triangleG and trian..
6HF + SiO2 => H2SiF6 + 2H2O Delta Hrxn = -670kJ/mol, What is the enthalpy change if the feed into a reactor contains 3 mol HF and 1.5 mol SiO2
concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ÃŽ¼g/mL Ca standard solution and diluted to 200.0 mL. Find the weight percent of Ca in the rock sam..
For the following changes, determine if the equilibrium would (L) shift left, (R) shift right, (N) have no effect. H20(g)+C(s) CO(g)+H2(g)
In a coffee-cup calorimeter, 1.40 g of NH4NO3 is mixed with 79.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.23°C.
Calculate the molarity of a solution made by adding 22.1 mL of concentrated ammonia (28.0 % by mass, density 0.880 g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 500 mL of solution.
How many milliliters of 0.200 M NaOH will be required to titrate 14.5 mL of 0.479 M H2SO4?
4 C3H5O9N3(l) → 12 CO2(g) + 6 N2(g) + O2(g) + 10 H2O(g) If a sample containing 2.01 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
The following mixture was prepared in a reactor at 460°C. [SO2] = 0.0200 M; [NO2] = 0.0200 M; [NO] = 0.100 M; [SO3] = 0.100 M What will the concentrations of the four gases be when equilibrium is reached? Matching pairs [SO2] [NO2] [NO] [SO3]
If you have 330 ml of water at 25 degrees and add 110 ml of water at 95 degrees, What is the final temperature of the mixture.
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