Formula and Answer Check

Find the volume of a gas at -30 C and 0.75 atm if it occupies a volume of 255L at 40.0 C and 1.25 atm.

I used the formula P1xV1/T1 = P2xV2/T2

and kept the pressure at 0.75 atm but are you supposed to keep it as STP and switch it to kPa??

The answer I got was
(o.75atm)(V1)/243k = (1.25atm)(255L)/313k

V1 = 330L

Is this right??

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That looks right to me.

That looks right to me. You've even got the right # of sif figs.

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