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A flask with a volume of 1.50L , provided with a stopcock, contains ethane gas (C2H6)...

A flask with a volume of 1.50L , provided with a stopcock, contains ethane gas (C2H6) at a temperature of 310K and atmospheric pressure 1.013

Expert Solution

Here is what I solved before, please modify the figures as per your question. Please let me know if you have further questions. Ifthis helps then kindly rate 5-stars.

A flask with a volume of 1.50 L, providedwith a stopcock, contains ethane gas (C₂H₆)at 300 K and atomospheric pressure (1.013 x 10⁵Pa). The molar mass of ethane is 30.1 g/mol. The systemis warmed to a temperature of 380 K, with the stopcock open to theatmosphere. The stopcock is then closed, and the flask cooledto its original temperature. a) What is the final pressure ofthe ethane in the flask? b) How many grams of ethane remainin the flask?

Given P₁=1.013*10⁵Pa

V₁=1.5*10^-3m³

T₁=300K

T₂=380K

We know that the ideal gas equation is

From this the pressure (P) is directly proportinal to thetemperature(T)

Substitute the values in this formula we get the finalpressure.

b)Given M=30.1g/mol

The mass of the Ethane is

=

In this R is real gas constant=8.314J/mol.K

Substitute the corresponding values in this formula we get themass in grams.

genius_generous answered 7 hours ago

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