Explore BrainMass
Share

Explore BrainMass

    Gas Constant and Wavelength

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Question #1

    Given the following data from a student, who completed the Gas Law Experiment calculate the gas constant, R

    Mass of magnesium = .026g
    Initial syringe volume = 0.0 mL
    Final syringe volume = 23.5 mL
    Temperature = 23.0 degrees Celsius
    Barometric pressure = 764.2 mm Hg

    Question #2

    Calculate the wavelength of light emitted when an electron transitions from the n=5 level to n=2. Identify what type of electromagnetic radiation that is.

    © BrainMass Inc. brainmass.com October 10, 2019, 6:20 am ad1c9bdddf
    https://brainmass.com/chemistry/energetics-and-thermodynamics/gas-constant-wavelength-540223

    Solution Preview

    1.
    P = 764.2 mm of Hg == 0.7642 * 13.6*10^3*9.8 (=h*d*g)
    => P = 1.0185*10^5 Pa

    V = 23.5 mL = 23.5*10^(-6) m^3

    No. of mo moles, n = 0.026/24.305 = 1.07*10^(-3) ...

    Solution Summary

    From given experiment data, Gas constant R is estimated. In second problem, corresponding to transition of electron from one level to other, wavelength of emitted wave is estimated.

    $2.19