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29 April, 17:21

How many atoms of he gas are present in a 450 ml container at 35°c and 740 mmhg?

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  1. 29 April, 19:49
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    To answer this question, we will need to use the gas law which states that:

    PV = nRT where:

    P is the pressure of the gas = 740 mmHg = 98658.550357 Pascal

    V is the volume = 450 ml = 0.45 liters

    n is the number of moles that we will calculate

    R is the gas constant = 8.314 J / (K. mol)

    T is the temperature = 35 celcius = 308 degrees kelvin

    Substitute with these values in the above equation to get the number of moles as follows:

    98658.550357 * 0.45 = n * 8.314 * 308

    n = 17.3375 moles

    Each mole contains Avogadro's number of atoms, therefore:

    number of atoms = 17.3375 * 6.02 * 10^23 = 1.0437 * 10^25 atoms
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