Chemistry

Chemistry, 16.09.2019 13:30, aesthvx44

3.75 g of an unknown gas at 59 °c and 1.00 atm is stored in a 1.35-l flask. what is the molar mass of the gas?

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3.75 g of an unknown gas at 29 °c and 1.10 atm is stored in a 1.75-l flask. what is the density of the gas? what is the molar mass of the gas?

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Chemistry, 04.08.2019 15:00, carryislarrywithdair

A200.0ml flask of unknown gas was placed in a hot water bath. the temperature of the bath was found to be 99 degrees c. the pressure of the flask was 733mmhg. the flask with the unknown gas in it had a mass of 126.593g. the same flask weighed 125.623g when it was empty. determine the mass f the unknown gas in the flask. determine the molar mass of an unknown gas. (assume that the ideal gas law is obeyed and use r= 0.0821 l atm/mol k show all work.)

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Chemistry, 02.10.2019 07:10, gummybear0

Select molecules and their boiling point and molar-mass values•ethyl acetate-16.5°c-88.1 g/mol•acetonitrile-81.6°c-41.0 g/mol•isopropyl acetate-82.4°c-60.1 g/mol•water-100°c-18.0 g/mol•ethylene glycol-198°c-62.0 g/molq1: the unknown given for analysis is one of the molecules listed in the table above. about 5 ml of an unknownliquid was placed in a 250ml erlenmeyer flask and covered with aluminum foil. the flask was heated to90.0°c. once most of the unknown escaped through a small hole in the aluminum foil cover, the flask wasremoved and cooled. the condensed liquid weighed about 0.540 g. the flask's total volume was measured tobe 268.2ml. the barometric pressure was 758.2 torr. what is the unknown's molar mass and identity? .[recall that 1.000 atm = 760.0 mm hg = 101.325 kpa and that r = 8.3145 kpa.l/mol.k.]q2: what measurement is the limiting factor in the above calculation?

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Chemistry, 06.10.2019 17:00, Kaiyla44

A2.35 g sample of an unknown gas at 55 ∘c and 1.05 atm is stored in a 1.85 l flask. what is the density of the gas and molar mass

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3.75 g of an unknown gas at 59 °c and 1.00 atm is stored in a 1.35-l flask. what is the molar mass o...

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