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A sample of 7.52 grams of Na OH is dissolved into 675 mL of aqueous M NaOH (assume no volume change). This solution is then poured into 1.95 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the final solution? Answer in units of M.

  • Chemistry -

    You omitted the molarity of the aqueous NaOH.

  • Chemistry -

    whoops..its 0.250 M NaOH

  • Chemistry -

    Convert 7.52 g NaOH to moles. moles = grams/molar mass.

    Convert the solution to moles. moles = M x L.

    Add the moles to find total moles and divide by total volume (in liters which means you must convert 1.95 gallons to liters).

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