Question

Question #33877

Answer 1

Consider,

`PV = nRT`

and assume that conditions are STP.

Hence,

`1.0atm * 61.6L = n * (0.08206L*atm)/(mol*K) * 273K`
`therefore n approx 2.75"mol" * (80.1g)/(SO_3) approx 220g`

of sulfur trioxide gas are in that volume (assuming it is the only gas, and ideal behavior).