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DaGreat
DaGreat asked in Science & MathematicsChemistry · 8 years ago

What is the molarity of this solution? (Assume a density of 1.02 g/mL?

One brand of laundry bleach is an aqueous solution containing 4.87% sodium hypochlorite (NaOCl) by mass.What is the molarity of this solution? (Assume a density of 1.02 g/mL

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  • Trevor H
    Lv 7
    8 years ago
    Favorite Answer

    Take 1.00L of the solution

    This has mass = 1000*1.02 = 1,020g

    It is 4.87% by mass

    Mass of NaOCl = 4.87/100*1020 = 4.9674g NaOCl

    Molar mass NaOCl =74.44 g/mol

    4.9674g = 4.9674 / 74.44 = 0.0667 mol NaOCl in 1.0L of solution

    Molarity = 0.0667M

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