shaylamartin730 shaylamartin730

03-11-2017
Chemistry

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how many moles of oxygen atoms are present in 2.0 grams of oxygen gas, O2?

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mateosmit1 mateosmit1

03-11-2017

alright, molar mass of O2 is 32 gm/gm-mol
2gms= 2/32=0.0625 gm-moles of O2
1 mole of O2= 2 moles of O. So Moles of oxygen = 2 x 0.0625=0.13 moles of O.

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