Question

`100 mL` of gas is collected at `750 mm` pressure. What volume will it occupy at `74.5 mm` pressure?

Answer 1

Given
`V_(1)=100 mL`
`P_(1)=750 mm`
`V_(2)=?`
`P_(2)=745 mm`
` :. P_(1)V_(1)=P_(2)V_(2)`
or `V_(2)=(P_(1)V_(1))/(P_(2))=(750xx1000)/(745)`
` :. V_(2)=100.67 mL`