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Chemistry

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Commercial bleach contains 5.25% (by mass) of NaClO in water. It has a density of 1.08 g/mL. Calculate the molarity of this solution. (Hints: assume you have 1 L of solution (mass 1080 g); molar mass of NaClO is 74.4 g/mol)

  • Chemistry -

    How much does a L weight?
    1000 mL x 1.08 g/mL = 1080 grams.
    How much of that is NaClO?
    1080 g x 0.0525 = ?? grams NaClO.
    How many moles NaClO is that?
    ??grams NaClO/molar mass NaClO = moles NaClO and that is in 1 L of solution so that is the molarity.

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