Molar Mass Of Argon

Solution for Use Graham's law of effusion to calculate molar mass. A sample of argon, Ar, effuses through a small hole at a rate of 9.00x10.° mol/h. The specific heat (= specific heat capacity) at constant pressure and constant volume processes, and the ratio of specific heats and individual gas constants - R - for some commonly used 'ideal gases', are in the table below (approximate values at 68 o F (20 o C) and 14.7 psia (1 atm)). For conversion of units, use the Specific heat online unit converter. You can view more details on each measurement unit: molecular weight of Argon or mol The molecular formula for Argon is Ar. Click to see full answer. Regarding this, how many moles are in 22 grams of argon answers?

Author(s)

XiaoJuan Feng, Jintao Zhang, , Inseok Yang, Mark Plimmer, H. Lin

Abstract

This article describes the accurate determination of the molar mass of a sample of argon gas used for a determination of the Boltzmann constant. The method due to one of the authors [Moldover et al., J. Res. Natl. Bur. Stand. 93, 85-144 (1988)] uses the ratio of the square speed of sound in the gas under analysis and in a reference sample of known molar mass. The results are in good agreement with determinations by gravimetric mass spectrometry, that the fractional difference arising from the two independent procedures is bounded within 0.37×10^-6 for the argon sampling from the same container. The uncertainties with both procedures are consistent.

Metrologia

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