The characteristics of a certain gas are listed in the table. What is the expected density of the above sample of gas?
A - 3.16 g/L
B - 1.58 g/L
C - 1.21 g/L
D - 1.03 g/L

Option A. 3.16 g/L

Explanation:

We'll begin by calculating the molar mass of Cl₂. This can be obtained as follow:

Molar mass of Cl₂ = 2 × 35.45

= 70.9 g/mol

Finally, we shall determine the density of Cl₂. This can be obtained as follow:

Molar mass of of Cl₂ (M) = 70.9 g/mol

Pressure (P) = stp = 1 atm

Temperature (T) = stp = 273 K

Gas constant (R) = 0.0821 atm.L/Kmol

Density (D) =?

D = PM / RT

D = (1 × 70.9) / (0.0821 × 273)

D = 70.9 / 22.4133

D = 3.16 g/L

Thus, the density of the gas is 3.16 g/L.

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