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30 August, 03:24

What mass of water must be added to 255.0 g nacl to make a 15.00 by mass solution?

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  1. 30 August, 03:45
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    0.15 = 255.0 / X - - - > X = 255.0 / 0.15

    X = 1700g

    (H2O + NaCl) - (NaCl) = H2O

    1700g - 255g = 1445g

    The mass of water would be 1445g.
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