Answer:
with sig figs, 6.73atm
without, 6.73423423
Step-by-step explanation:
We can use Boyle's law because we're given two volumes, and one pressure.
P1V1 = P2V2
plug the numbers your given into the equation:
(1.15atm)(6.5L) = P2(1.11L)
Then just solve it like an alegbra 1 problem.
7.475atmL/1.11L = P2
units of liters cancel when dividing.
6.73423423atm = P2
using the sig figs of the original pressure, you get 6.73atm.
:)