Answer:
The volume would be 0,318 L ( 318 ml)
Explanation:
We use Boyle Mariotte's formula: for a given mass of gas at constant temperature, the pressure and volume vary inversely proportionally. We convert the unit of pressure to mmHg in atm and the volume in ml into L.
760mmHg ----1 atm
800mmHg----x= (800mmHgx 1 atm)/760mmHg=1,05 atm
1000mmHg---x= (1000mmHgx 1 atm)/760mmHg=1,32 atm
450/1000= 0,45 L
P1xV1=P2xV2
V2= (P1xV1)/P2= (1,05atmx 0,4L)/1,32 atm=0,318 L
