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how many grams of sodium chloride do you need to prepare 250 mL of a 5.00% sodium chloride solution?

  • chemistry -

    5% means 5g NaCl in 100 g solution.
    100 g has what volume?
    mass = volume x density. If you know density you can calculate volume.
    Then 5 g NaCl x (250 mL/volume) = xx g NaCl

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