What is the density of a sample of argon gas at 69 ∘C
and 768 mmHg
?

What Is The Density Of A Sample Of Argon Gas At 69 C And 768 MmHg ?

Answers

Answer 1

The density of the sample of argon gas at 69 °C and 768 mmHg is 1.44 g/L (1st option)

How do i determine the density of the gas?  

From the question given above, the following data were obtained:

Temperature of gas (T) = 69 °C = 69 + 273 = 342KPressure of gas (P) = 768 mmHg = 768 / 760 =  1.01 atmGas constant (R) = 0.0821 atm.L/Kmol Molar mass of argon (M) = 40 g/molDensity of gas (D) = ?

The density of the sample of argon gas can be obtained as illustrated below:

D = MP / RT

D = (40 × 1.01)  / (0.0821 × 342)

D = 1.44 g/L

Thus, from the above calculation, we can conclude that the density of the gas is 1.44 g/L (1st option)

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