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Chemistry help Please!?

okay so i've been really sick and missed alot of school, i have a chemistry project due and im really confused on how to get the answer. please help!

A 20.0 liter cylinder of helium gas is confined at a pressure of 42.5 atmospheres. If all of the helium is used to fill balloons at a pressure of 1.02 atmospheres, determine the total volume of balloons that could be filled at constant temperature.

* could you try your best to show me how you did it so i can actually learn, thanks!

3 Answers

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  • 9 years ago
    Favorite Answer

    This is a simple application of Boyle's law: P1/P2 = V2/V1

    I am not sure how familiar you are with Boyle's law, but I will explain the answer based on this law because the process is taking place at a constant temperature.

    Using the formula above, plug in the givens, which are:

    P1 = 42.5 atm

    P2 = 1.02 atm

    V1 = 20.0 L

    Solving for V2:

    V2 = (42.5 atm/1.02 atm) * 20.0 L

    V2 = 833 L, which is the total volume of balloons that could be filled at constant T

  • 9 years ago

    P1V1 = P2V2

    P1 = 42.5 atm

    V1 = 20.0 liter

    P2 = 1.02 atm

    V2 = ((42.5)(20.0))/1.02 = 833 liters

    This is Boyle's Law. Pressure and volume are inversely related, with the number of moles of gas and temperature constant.

  • trif
    Lv 4
    4 years ago

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