Chemistry

Ringer's solution, used in the treatment of burns and wounds, is prepared by dissolving 8.6 g of NaCl, 0.30 g of KCl, and 0.33 g of CaCl2 in water and diluting to a volume of 1.00 L.

What is the osmolarity of Ringer’s solution?

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  1. mols NaCl = grams/molar mass
    osmols NaCl = 2xmols NaCl

    mols KCl = grams/molar mass
    osmols KCl = 2xmols KCl

    mols CaCl2 = grams/molar mass
    osmols CaCl2 = 3xmols CaCl2

    Take sum osmols to obtain total.
    That/1L = ? osmolarity

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