A gas bottle contains 0. 250 mol of gas at 730 mm Hg pressur…

A gаs bоttle cоntаins 0. 250 mоl of gаs at 730 mm Hg pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle? 1.00 atm = 760 mm Hg. Show your work