Question

Calculate the mass of one molecule of Oxygen gas ??



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Answer 1

Oxygen's atomic weight is 16.00 amu.1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g What is the molar mass  of oxygen? Molar mass (in grams) is always equal to the atomic weight of the atom!