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Posted by on Sunday, February 19, 2012 at 11:12pm.

How many particles are in .169 moles of Potassium Sulfide?!

What is the percent composition of sulfer in that same prolem?!

  • Chemistry - , Sunday, February 19, 2012 at 11:15pm

    There are 6.02E23 molecules in 1 mole of K2S. There are three particles (2K and 1S in a molecule of K2S); therefore, there are three particles per mole of K2S.

    %S = (atomic mass S/molar mass K2S)*100 = ?

  • Chemistry - , Sunday, February 19, 2012 at 11:18pm

    Thank you so much DrBob222

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