Molar Mass - Mass of 1 mole of any substance, 2.5 moles of Ne has - 1.50x1024  atoms of Ne, 22.414dm3 - 1 mole of any gas at STP, 2g/mol - Molar mass of H2 (atomic mass of H=1), Avogadro's number - 6.022x1023,

Stoichiometry Basic Calculations

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