Question

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! =)

Answer 1

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

Answer 2

Okay - so, unless elements in a molecule have ionic charges showing, I should just add the masses of the elements together, like normal?

Answer 3

yes

Answer 4

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?

Answer 5

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

Answer 6

Okay. I do remember my Chem. book saying that.

Answer 7

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

Answer 8

Oh, okay - I see, now. Thank you very much - you've been great! =)