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11 April, 16:22

What is the mass percent of NaCl in a solution made by dissolving 23.0 g of NaCl in 150.0 g of water?

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  1. 11 April, 20:06
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    13.3 % by mass of NaCl

    Explanation:

    Solution is made of NaCl and water

    Mass of NaCl = 23 g → Solute

    Mass of H₂O = 150 g → Solvent

    Total mass of solution = Solute + Solvent

    23 + 150 = 173 g

    Mass percent of NaCl → (Mass of solute / Mass of solution). 100

    (23g / 173g). 100 = 13.3 g
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