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What are the equilibrium partial pressures of CO and CO2 if CO is the only gas present initially, at a partial pressure of 0.872 atm?At 1000 K, Kp= 19.9 for the reaction Fe2O3 + 3CO = 2Fe + 3 CO2
HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous water
Determine the final concentration if A 134 ml portion of that solution is diluted using 147 ml of H 2 O?
Aluminum nitrate and ammonium chloride react to form aluminum chloride, nitrogen, and water. what mass of aluminum chloride is present after 74.7 g of aluminum nitrate and 56.8 g ammonium chloride have reacted completely.
4HCl MnO2=MnCl2 2H2O Cl2. When .375 moles of HCl reacts with excess MnO2, a.) How many moles of Cl2 form? b.)How many grams of Cl2 form?
Calculate the volume of N2 produced at 21 degrees C and 823 mmHg if 60.0 g of sodium azide reacted
A water sample was taken from a lake. A 100.00mL portion of this sample was pipetted into a 250mL Erlenmeyer flask. EriochromeBlack T-indicator, sodium cyanide, and ammonia buffer
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of the compound?
The atomic mass of element X is 22.99 amu. A 19.98-g sample of X combines with 16.51 g of another element Y to form a compound XY. Calculate the atomic mass of Y.
A molecule of N2 in air travels at about 1000 ft/sec. If the supersonic transport Concorde travels at 1500 miles/hour, how fast does it travel in ft/sec? (1 mile = 5280 ft)
A mixture of gas contains 46.3 % methane, 37.2% ethane and 16.5% propane(by mass). A 477g sample of the gass is burned with exces oxygen
If 120 of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m. ?
Calculate the percent (by volume) of air that would be displaced when all of theN2 (l) get evaporated. it is given that Liquid nitrogen has a density of 0.807 g/mL
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