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Anonymous
Anonymous asked in Science & MathematicsChemistry · 2 months ago

Does anyone know ho to calculate the percent composition of potassium sulfite?

3 Answers

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  • Roger the Mole
    Lv 7
    2 months ago

    potassium sulfite = K2SO3

    K2 = 78.1966 g/mol

    S = 32.065 g/mol

    K2SO3 = 158.2598 g/mol

    (78.1966 g/mol) / (158.2598 g/mol) = 0.49410 = 49.410% K by mass

    (32.065 g/mol) / (158.2598 g/mol) = 0.20261 = 20.261% S by mass

    100% total - 49.4103% K - 20.261% S =  30.329% O by mass

  • Jim
    Lv 7
    2 months ago

    There are 2:

    percent by element,

    percent by mass

  • billrussell42
    Lv 7
    2 months ago

    how?  you need a lot more info before this can be answered.

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