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chemistry

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A solution contains 4.46 g KCl in 178 mL of solution. The density of the KCl solution is 1.11 g/ml.
What is the percent (m/m) for the potassium chloride solution?

  • chemistry - ,

    %KCl w/w (or m/m) means grams KCl/100 g solution. You have g KCl in the problem. Convert 178 mL solution to grams.
    mass = volume x density
    mass = 178 mL x 1.11 g/mL = g soln.
    Then %KCl = (grams KCl/g soln)*100 = ??

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