What pressure is exerted by 0.625 mol of a gas in a 45.4 L container at -24.0ºC

Answer 1

My chemistry is rusty, but since this is urgent, try this...

pV=nRT

45.4 L (p)= 0.625 (R) (-24 +273)

R= gas constant
T has to be changed into degrees Kelvin

then solve for p

I think it's right