Answer:
141.88ml
Explanation:
From Boyles law, the pressure of a gas is inversely proportional to the volume at constant temperature, which can be expressed below
P1V1=P2V2
P1= initial pressure= 4.28atm
P2= final pressure=7.24atm
V1= initial volume= 240.0mL
V2= final volume=?
Making V2 subject of the formula we have, V2= (P1V1)/P2 then substitute those values we have
V2= (4.28atm× 240.0mL)/7.24atm
V2= 1027.2/7.24
V2=141.87mL
Therefore,the final volume of the sample is 141.87mL