Chemistry, 15.12.2019 11:31 jeffhuffle17
Heptane (c7h16) and octane (c8h18) are constitutents of gasoline. at 80 degree celsius, the vapor pressure of heptane is 428mmhg and the vapor pressure of octane is 175mmhg. what xheptane in a mixture of heptane and octane that has a vapor pressure of 305mmhg and 80 degree celsius?
Answers: 1
Chemistry, 21.06.2019 13:30
What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up?
Answers: 1
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
Chemistry, 23.06.2019 01:40
Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?
Answers: 1
Heptane (c7h16) and octane (c8h18) are constitutents of gasoline. at 80 degree celsius, the vapor pr...
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