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March 29, 2017

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What is the molarity (moles per liter) of an aqueous solution that is prepared by dissolving 5.58g NaOH (MW=40) in enough water to make 250mL of solution?

  • chemistry - ,

    How many mols NaOH do you have? That's mols = grams/molar mass.
    Then M = mols/L solution.

  • chemistry - ,

    Thank you..

    I get

    5.58g NaOH / 40g NaOH / 0.25L = 0.558 NaOH solution

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