Inhale Sulfur Hexafluoride SF6

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Autor:	dchummer
Opis:	Demo HChem: Inhaling sulfur hexafluoride will decrease the pitch of my voice. Heavier molecules travel at a slower velocity through my vocal chords. Illustration of Graham's Law of effusion.
Wyświetlenia:	62,125

Tagi: chemistry demonstration graham's law sulfur hexafluoride

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