Chemistry

What mass of sodium chloride, NaCl, is needed to make 369. g of a 3.04%(m/m) NaCl solution?
(atomic masses: Na = 22.99, Cl = 35.45)

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asked by Abby
  1. % w/w = mass solute/mass solution.
    (X/369)*100 = 3.04
    Solve for X = grams NaCl.

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    posted by DrBob222
  2. massNaCl=369*.0304

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