A sample of gas has a volume of 0.600 L at a temperature of 30.oC and a pressure of 0.800 atm. What is the number of moles in this sample

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A sample of gas has a volume of 0.600 L at a temperature of 30.oC and a pressure of 0.800 atm. What is the number of moles in this sample

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Thái Dương 3 years 2021-07-10T07:35:13+00:00 1 Answers 1 views 0

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  1. Farah
    0
    2021-07-10T07:37:12+00:00
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    Answer:

    0.00019 moles

    Explanation:

    Use the Ideal Gas Law formula: PV=nRT

    Remember:

    P = pressure (atm)

    V = volume (L)

    n = number of moles (mol)

    R = molar gas constant (8.314 J*mol/K)

    T = Temperature (K)

    1. First rearrange the formula so that it would be easier to find the number of moles.

      n=\frac{PV}{RT}

    2. Convert the Temperature from Celcius to Kelvin (remember the temperature is always used in Kelvin for the formula).

      30° C + 273 K = 303 K

    3. Now substitude your values

      n=\frac{(0.800atm)(0.600L)}{(8.314 J*mol/K)(303K)}

    4. Find your value

      n=0.0019 mol

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