March 27, 2017

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Calculate the concentration of potassium ions in grams per liter after mixing 100 ml of 0.250 M KCl and 200 ml of 0.100 M K2SO4

  • Chemistry - ,

    Given For KCl:
    c1 = 0.250M
    V2 = 100mL
    Given For K2SO4:
    c2 = 2*(0.100M) [NB: K{+} conc.]
    V2 = 200mL
    No change in solution density, so final volume equals sum of initial volumes.
    Target concentration is total amount divided by final volume.

    c = (c1 V1 + c2 V2)/(V1 + V2)

  • Chemistry - ,


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