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Posted by on Wednesday, December 5, 2012 at 7:55pm.

The molecules of a certain gas sample at 367 K have a root-mean-square (rms) speed of 261 m/s. Calculate the most probable speed and the mass of a molecule.

  • Chemistry Help - , Wednesday, December 5, 2012 at 9:53pm

    rms = sqrt(3kT/m)
    k is the Boltzman constant (look that up)
    T is given in kelvin.
    m is the mass of 1 molecule. Solve for that.
    The average speed is (rms)^2

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