The molar mass of a volatile substance was determined by the Dumas-bulb method described in Exercise 10.53. The unknown vapor had a mass of 0.846 g; the volume of the bulb was 354 cm3, pressure 752 torr, and temperature 100 °C. Calculate the molar mass of the unknown vapor.

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Q: Define the term Molecular Effusion?

A: The term molecular effusion has to be defined.

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A:

Q: A sample of volume 18.3 L has a mass of 57.9 g.(a) Is the material gaseous or condensed?(b) If the…

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Q: What is the root-mean-square speed of CO at 113 degrees Celsius?

A: Temperature = 113 C =(113+ 273) K =386K Molar mass of CO  = 28.01 g/mol

Q: Calculate the root mean square velocity of gaseous xenon atoms at 25 degrees Celsius.

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Q: The density of a gaseous compound was found to be 1.23 g/L at 330 K and 150 Torr. What is the molar…

A: Given, The density of a gaseous compound was found to be 1.23 g/L at 330 K and 150 Torr. The molar…

Q: Calculate the density of uranium (VI) fluoride, UF6, at 70.0 °C and 25.0 kPa.

A: density of uranium (VI) fluoride, UF6 = d = ................ Molar mass of UF6 = M = 352 g/mol…

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A:

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A: the mass of air when water vapor is introduced at the same pressure and volume will be:

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Q: What mass of helium gas (in g) occupies 11.5 L at STP?

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Q: What is the the root-mean-square speed of H2 molecules at 15.4 oC?

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A: Answer:

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Q: A steel container of volume 0.35 L can withstand pressures up to 88 atm before exploding. What mass…

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Q: A 500 mL sample of oxygen was collected by displacement of water at 24 degrees celsisus under…

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Q: Consider a sample of nitrogen gas, N2, in which the constituent molecules have a root-mean-square…

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Q: In an experiment, 175 mL of nitrogen gas was collected over water at 23.5 oC and 757 mmHg. What mass…

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