2007-01-25 08:16:45 · 4 answers · asked by chet4pizza 1 in Science & Mathematics ➔ Chemistry
I assume you are referring to Oxygen gas (O2). Atomic Oxygen (O) is not often found as it will so easily react with other things, including itself, to form other molecules/compounds.
mass = moles * molar mass
The molar mass of Oxygen gas is about 32.0 grams per mol.
If you have 2 moles of Oxygen gas, then,
mass = 2 moles * 32.0 grams per mole
mass = 64.0 grams.
2 moles of Oxygen gas = 64.0 grams.
Atomic Oxygen (O) has a molar mass of 16.0 grams per mole.
2 moles of atomic Oxygen would have a mass of 32.0 grams (= 2 moles * 16.0 g/mol).
http://www.webelements.com/webelements/elements/text/O/key.html
2007-01-25 08:31:23 · answer #1 · answered by mrjeffy321 7 · 0⤊ 0⤋
mass of oxygen is 32 gm per mole
so , 2 mole oxygen will have mass od 64 gm
2007-01-25 16:30:16 · answer #2 · answered by 2 · 0⤊ 1⤋
32. Oxygen's atomic mass is 16
2007-01-25 16:34:35 · answer #3 · answered by Celt 3 · 0⤊ 0⤋
zero O2 has no weight
2007-01-25 16:26:30 · answer #4 · answered by Plotey 1 · 0⤊ 2⤋