One mole of an ideal gas does 3400 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 22.0 L.

(a) Determine the initial volume in m^3.

i tried using the formula w=integral f/i pdv
3400J= -(1.00atm)(.022m^3Vf-Vi)
i eneded with 1.55 x10^5 but htis is not the right answer. HELP PLS!