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1. A 31.4mL sample of nitrogen gas was collected over water at 23.7 degrees Celsius as well as a barometric pressure of 706mmHg. Define what mass of nitrogen was collected? Vapor pressure of water at 23.7 degrees Celsius is 22mmHg.
2. Chloroform (CHCl3) became popular as an anesthetic after Queen Victoria delivered her eight child as anesthetized by chloroform in 1853. Explain what is the density in grams per liter of chloroform at 35 degrees Celsius and 850torr?
3. Explain how many liters of H2 are needed to make 327L of NH3 by the reaction: N2 (g) + 3H2 (g) -->2NH3 (g), if the gases are at the same temperature as well as pressure?
what is meant by hydrogenation? please answer in a simple and easy to
predict the products of the reaction of acetophenone with 1) NaBH4 then H3O+ 2)aqueous acidic CrO3 3)NH2OH 4)CH3MgBr, then H3O+ 5) CH3OH, H+ catalyst
What is the percent purity of the calcium hydroxide if the titration requires 21.42 mL of the acid to reach the endpoint
500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid are left over after the reaction is complete?
A dry-cleaning solvent (molecular weight = 146.99 g/mol) that contains C, H, and Cl is suspected to be a cancer-causing agent. When a 0.124 g sample was studied by combustion analysis, 0.223 g of CO2 and 0.0301 g of H2O formed. How many moles of e..
a furniture factory needs 31.5 ft2 of fabric to upholster on a chair. its dutch supplier sends the fabric in bolts of
What is [Pb^2+] in a saturated solution of PbCO3 if Na2CO3,with a common ion is added to give [CO3^2-]=3.0x10^-4 M? PbCO3 Ksp=7.4x10^-14
Formic acid, HCHO2, is a convenient source of small quantities of carbon monoxide. When warmed with sulfuric acid, formic acid decomposes to give CO gas
calculate the approximate concentration of the solution in mol/kg and determine the volume change of the ballon when it ascends from 1 atm pressure to 240 torr pressure ?
What is the velocity of an electron that has a de Brogile wavelength of 4.22 nm?
an object made of aluminum has a mass of 8.37 gram. when it was placed in a graduate cylinder containing 20.0 milliter of water, the water level rose to 23.1 milliter. calculate the density and specific gravity of the object.
A 0.5000-g sample containing NaHCO3, Na2CO3, and H2O was dissolved and diluted to 250.0 mL. A 25.00-mL aliquot was then boiled with 50.00 mL of 0.01255 M HCl. After cooling, the excess acid in the solution required 2.34 mL of 0.01063 M NaOH when t..
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