1A10.60 - Avogadro's Number

Code Number:
Demo Title:
Avogadro's Number
Moles and Periodic Chart Fundamentals
Area of Study:
22.4 Liter Box = 1 Mole of Gas.

Video Credit: Jonathan M. Sullivan-Wood.

The box is just to show what the volume of 1 mole of gas would be.  There should be Avogadro's number of molecules of a gas in this volume.

  • Antonio A. Moya, "Studying Avogadro's Law with Arduino", TPT, Vol. 57, #9, Dec. 2019, p. 621-623.
  • James J. Carr, "Sizing Up Atoms", TPT, Vol. 44, #4, Apr. 2006, p. 198.
  • A. John Mallinckrodt, "Line 'em Up", TPT, Vol. 44, #3, Mar. 2006, p. 134.
  • Clifford Swartz, "All Atoms Are (About) the Same Size", TPT, Vol. 44, #1, Jan. 2006, p. 16.
  • John L. Kroening, "Old Avogadro", TPT, Vol. 29, #6, Sept. 1991, p. 326.
  • Frederic R. Stauffer, "An Estimate of Avogadro's Number", TPT, Vol. 29, #4, Apr. 1991, p. 252.
  • Albert A. Bartlett, "One Mole of Dollars", TPT, Vol. 26, #2, Feb. 1988, p. 98.
  • Frank T. Dietz, "More on Avogadro's Number", TPT, Vol. 22, #8, Nov. 1984, p. 515.
  • Edwin R. Jones Jr. and Richard L. Childers, "Observational Evidence for Atoms", TPT, Vol. 22, #6, Sept. 1984, p. 354.
  • Albert A. Barlett, "Examples of Atmospheric Arithmetic", TPT, Vol. 21, #9, Dec. 1983, p. 594.
  • Phillip Morrison, "Something Old, Something New", TPT, Vol. 10, #2, Feb. 1972, p. 67.
  • Hugh C. Wolfe, "Weight in Newtons - Mass in Kilograms!", TPT, Vol. 10, #1, Jan. 1972, p. 5.
  • Wendell G. Bradley, "A Definition of the Mole Suitable for Physicists", TPT, Vol. 9, #7, Oct. 1971, p. 385.
  • S. I. Salem, T. Boughter‐Cardin, M. T. Civalleri, J. W. Leonard, R. A. Schreiman, and G. A. Williams, "Determination of Avogadro's Number (An Experiment)", AJP, Vol. 56, #5, May 1988, p. 466.
  • George C. Alexandrakis, "Determination of Molecular Size and Avogadro's Number: A Student Experiment", AJP, Vol. 46, #8, Aug. 1978, p. 810.
  • "H-450: Gram Molecular Volume Box", DICK and RAE Physics Demo Notebook.
  • David Kutliroff, "64, Use Old Throw Away Hypodermic Syringes to Illustrate the Ideal Gas Law", 101 Classroom Demonstrations and Experiments For Physics Teachers, p. 142 - 143.
  • "Does a Gas Have a Mass?", The Caliper, Vernier Software & Technology, Vol. 21, #2, Fall 2004, p. 7.
  • David B. Newell, "Units and Constants", APS News, Vol. 25, #5, May 2016, p. 4.
  • Richard Williams, "This Month in Physics History: February 1811: Amadeo Avogadro Enumerated the Molecular World", APS News, Vol. 25, #2, Feb. 2016, p. 2, 5.
  • Julius Sumner Miller, Q3 & A3, Millergrams I – Some Enchanting Questions for Enquiring Minds, p. 16 & 76.
  • Julius Sumner Miller, Q204 & A204, Millergrams II – Some More Enchanting Questions for Enquiring Minds, p. 59 & 109.

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