if a bacterial culture produces 60.0 mL of methane gas at 700.0 mm Hg, what volume would be produced at 760.0 mmHg

Respuesta :

 P1 x V1/ T1 = P2 x V2/ T2 works for all gas problems. 
In this case the temperature is constant so 
P1 x V1 = P2 x V2 
700.0 x 60.0 = 760.0 x Answer 
700.0 x 60.0/ 760.0 = Answer