What volume at SLC is occupied by an 88⋅g mass of carbon dioxide?

A. 49⋅L;
B. 24.5⋅L;
C. 98⋅L;
D. Cannot be determined.

1 Answer
anor277
Apr 2, 2016

Option A, 49 L.

Explanation:

Now you have 88.0⋅g44.0⋅g⋅mol−1 = 2⋅mol CO2(g).

For this molar quantity of course we could solve the Ideal Gas equation, but, we know that 1 mol of Ideal Gas has a volume of 24.5 L under standard conditions of 298 K and 1 atm. I think that this is even given as supplementary information in the A level exams. Since we have 2 mol, there will be twice this molar volume.

The actual experimental volume will be very close to this value, as we have a regime of moderate pressures, and reasonably high temperatures.

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