A sample of ammonina gas at 65.5 degrees celsius and 524 torr has avolume of 15.31 L. What is it's volume at -15.8 degrees celsius and its pressure is 524 torr?

Answer 1

I presume you mean ammonia

Use P1V1/T1=P2V2/T2

You can leave the volumes as L and pressures as torr, but you need to use kelvin for the temperatures.

PS - thank you for correctly using celsius (lower case c)