The pressure on a balloon holding 356 mL of an ideal gas is increased from 267 torr to 1.00 atm. What is the new volume of the balloon (in mL) at constant temperature

124.52 mL

Explanation:

from Boyle's Law,

PV = P'V' ... Equation 1

Where P = Initial pressure of the gas, V = Initial volume of the gas, P' = Final pressure of the gas, V' = Final volume of the gas.

make V' the subject of the equation.

V' = PV/P' ... Equation 2

Given: P = 267 torr = (267*0.00131) = 0.34977 atm, V = 356 mL, P' = 1 atm

Substitute into equation 2

V' = (0.34977*356) / 1

V' = 124.52 mL.

Hence the new volume of the balloon = 124.52 mL