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Jes
Lv 5
Jes asked in Science & MathematicsChemistry · 1 decade ago

Can someone help me set up this chem problem?

The problem is "How many moles of ions are in 1.90 mol of K2SO4?" and I'm not sure what I'm doing wrong.

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  • Dr.A
    Lv 7
    1 decade ago
    Favorite Answer

    Potassium sulphate is a strong electrolyte :

    K2SO4 = 2 K+ + SO42-

    moles of ions = ( 2 x 1.90) + 1.90=5.70

  • Facts Matter
    Lv 7
    1 decade ago

    each K2SO4 contains two K+ ions, and one SO4 2- ion.

    So there are 5.70 moles ions altogether in 1.90 moles K2SO4.

    Make sure you can see why this is so.

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