Sometimes the problem will give the initial and final states in different units, In this case, you need to identity ail of the pressures and all of the volumes by organizing them into a table (step 1 of our problem-solving method). Then, you need to convort all of your pressures to the sarme units (usually atmospheres works best) and ail of your volumes to the same units (usually liters). Then you can set up the problem and solve. A balloon filted with 2.00L of hellum initially at 2.15 atm of pressure rises into the atmosphere. When the surrounding pressure reaches 320 . mming. the balloon will burst. If 1atm=760.mmHg, what volume will the balloon occupy in the instant before it bursts? Express your answer with the appropriate units