If 12.0 g of CCly F is enclosed in a 1.1 L container, calculate the number of mo

Question

If 12.0 g of CCly F is enclosed in a 1.1 L container, calculate the number of moles of CClaF in the gas phase Express your answer using two significant figures. n gaseous CClaF mol Submit Previous Answers RequestAnswmr X Incorrect, One attempt remaining: Try Again Calculate the number of moles of gas present in a 1.1 L container at 856 torr and 300 K using the ideal gas law rather than the number of moles of liquid in the container initially. The vapor pressure is the equilibrium pressure of the gas in the container, and the ideal gas law should be used to calculate the moles of gas present.

Explanation / Answer

From the ideal gas equation

Moles of gaseous CCl3F

n = PV / RT

= (856/760 atm) x (1.1 L) / ((0.0821 Latm/Kmol) x (300 K))

= 0.050302 mol gas of CCl3F

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