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Calculating molality

  1. Mar 5, 2014 #1
    Question
    A 1.392 M sodium carbonate solution has a density of 1.1353 g/mL. Calculate the molality of the solution.

    Attempt
    1.392 M Na2CO3 = 1.392 mol Na2CO3 per 1 L solution

    I can't really make sense out of this. What would be the next step?
     
  2. jcsd
  3. Mar 5, 2014 #2

    Borek

    User Avatar

    Staff: Mentor

    What is the definition of molality?

    Assume you have 1L of the solution. What is its mass? What is the mass of dissolved sodium carbonate? What is the mass of the solvent?
     
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