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Helium: Forscher warnen vor weltweiter Knappheit - DER SPIEGEL
Given molecular weight of hydrogen molecule is M = 2.016 × 10^-3 kg/mol . If the root - mean - square speed of hydrogen molecules (H2) at 373.15K (100^∘ C) is vrms = x + 210100 km/s . Find x .
Metro Helium: Angebot & Preis im aktuellen Prospekt 🧡
Helium Set - Lidl — Ireland - Specials archive
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