If a gas occupies a volume of 400cm3 at S.T.P. At what temperature will the gas occupies a

Question

volume of 850cm3and have a pressure of 720mmHg?

Answer 1

Use (P1V1/T1) = (P2V2/T2)
Remember STP is 273.14 Kelvin and 760 mm Hg pressure. Post your work if you want someone to check it.