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BarlowGirl

PLEASE HELP!!!!! URGENT!!! If I have the compound: S2O2, what is the molar mass? Also, would I need to do anything with the charges, or should I just take 2 moles of S and 2 moles of O and add them together, to get the molar mass? Thanks! =)

  • one year ago
  • one year ago

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  1. UnkleRhaukus
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    the mass of a mole of \(S_2O_2\) is the sum of the molar masses of its parts

    • one year ago
  2. BarlowGirl
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    Okay - so, unless elements in a molecule have ionic charges showing, I should just add the masses of the elements together, like normal?

    • one year ago
  3. Kryten
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    yes

    • one year ago
  4. BarlowGirl
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    Like what if I have S2Cl - the charges of Cl are not balanced with the charges of the 2S. Do I need to account for the charge difference, in some way, when I go to find the mass?

    • one year ago
  5. UnkleRhaukus
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    the charge difference will only be due to electrons each electron one \(\frac1{1836}th\) of the weight of a hydrogen nucleus even if the charge difference is ±10 this will not going to effet the mass or molar mass significantly

    • one year ago
  6. BarlowGirl
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    Okay. I do remember my Chem. book saying that.

    • one year ago
  7. UnkleRhaukus
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    you could add \(0.0005446 \text { amu}\) for any negative charge for each extra electron , and take one off if you had a positive ion , but there wouldn't be much point

    • one year ago
  8. BarlowGirl
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    Oh, okay - I see, now. Thank you very much - you've been great! =)

    • one year ago
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