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Huh
Lv 6
Huh asked in Science & MathematicsChemistry · 2 years ago

If pure water is 55.5 M, what is the molarity of the water in a 2 M solution of NaCl in which the solvent is water?

3 Answers

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  • ?
    Lv 7
    2 years ago

    You need the density of 2M NaCl. Take it from there.

  • Huh
    Lv 6
    2 years ago

    The molarity of pure water is the density of water divided by the molecular weight: [(1.00 grams / mL) * (1000 mL / 1 L)] / (18.015 grams / mole) = ~ 55.5 moles / L = ~ 55.5 M. How do you have a top user badge and not know this?

  • billrussell42
    Lv 7
    2 years ago

    "pure water is 55.5 M" ?? what does this mean?

    water dissolved in water doesn't make sense.

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