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What is the density (in g/L) of a gas with

a molar mass of 32.49 g/mol at
2.569 atm and 458 K?​

User RanLearns
by
3.4k points

2 Answers

7 votes

Answer:

2.22 g/L

Step-by-step explanation:

User Walker Boh
by
3.6k points
7 votes

Answer:

2.22 g/L

Step-by-step explanation:

There's a relationship using the ideal gas law between molar mass and density:
MM=(dRT)/(P), where MM is the molar mass, d is the density, R is the gas constant, T is the temperature, and P is the pressure.

We know from the problem that MM = 32.49 g/mol, T = 458 Kelvin, and P = 2.569 atm. The gas constant, R, in terms of the units atm and Kelvin is 0.08206. Let's substitute these values into the formula:


MM=(dRT)/(P)


32.49g/mol=(d*0.08206*458K)/(2.569atm)

Solve for d:

d * 0.08206 * 458 K = 32.49 * 2.569

d = (32.49 * 2.569) / (0.08206 * 458 K) ≈ 2.22 g/L

The answer is thus 2.22 g/L.

~ an aesthetics lover

User Simon Bingham
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