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14 August, 12:19

How many moles of nitrous oxide gas (N2O) is contained in 20.0 L balloon at a pressure of 1.09 atm and a temperature of 298K?

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  1. 14 August, 13:58
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    There are 0,89 moles of nitrous oxide gas in the balloon.

    Explanation:

    We apply the formula of the ideal gases, we clear n (number of moles); we use the ideal gas constant R = 0.082 l atm / K mol:

    PV = nRT - --> n = PV/RT

    n = 1,09 atm x 20,0 L / 0.082 l atm / K mol x 298 K

    n = 0,89212637 mol
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