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A xenon fluoride compound can be prepared by heating a mixture of Xe and F2 to a high temperature in a pressure- proof container made of nickel. Assume that xenon gas was added to a 0.25 L container until its pressure was 0.12 atm. Fluorine gas was then added until the total pressure was 0.72 atm. After the reaction was complete, the xenon had been consumed completely and the pressure of the F2 remaining in the container was 0.36 atm. Note: all pressures were measured at the same constant temperature. What is the empirical formula of the compound prepared from Xe and F2?
A 1L steel tank has a safety valve that opens when the internal pressure exceeds 850 torr. The tank is filled with He at 23 oC and 0.991 atm.
What is the freezing point of water under a pressure of MPa? Assume that the density of ice is 0.915 g.cm^-3 and that of liquid water is 0.998 g cm^-3 at this pressure
A mixture contains both potassium phosphate and potassium chloride. What is the percentage of potassium phosphate in this mixture if reaction of 0.401g of this mixture with excess copper (II) chloride yields 0.213g of copper (II) phosphate?
A compound of molecular weight 280 g/mol a concentration of 15.0 micrograms per ml absorbs 65 percent of radiation at a certain wavelength in a 2 cm cell.
A heat exchanger is used to transfer heat from a steam stream to a chlorine gas stream. 100 kg of steam at 1 bar and 200°C enters the heat exchanger and leaves the exchanger as saturated steam at 1 bar. Chlorine gas enters the exchanger at 1 bar a..
What are the vant Hoff factors of C2H5OH (no dissociation), NaCl (full dissociation), Na2CO3 (full dissociation)
A 100.0 mL of 10.0 mM phosphate buffer, pH 7.5 (pka2 = 7.2). You are provided with 0.200 M KOH and 0.100 M KH2PO4 solutions, Calculate volume of KOH and KH2PO4 solutions
Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution is prepared by measuring 25 mL of the concentrated HCl,
Calculate the pH of CO2-saturated water at 25 degrees C, given that the CO2 concentration in air is 366 and that for carbon dioxide the Henry's Law constant KH=3.4E-2 mol L-1 atm-1 at 25 degrees C.
Drawa a fat (oil) molecule representing corn oil. The fatty side chains that you need to include are two of the esters group derived from oleic acid and one from the linoleic acid. Draw the structure of this oil clearly with appropriate double bon..
In an excess amount of oxygen, how many grams of CO2 (g) are theoretically produced from the combustion of 901.0 g of glucose [C6H12O6 (s), molar mass of 180.2 g/mol]?
Determine the heats of formation or the steric energies of the exo- and endo-anhydride adducts using a molecular mechanics program.
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