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Concentration to mass

  1. Mar 3, 2004 #1
    Calculate the mass of paradichlorobenzene (M=147.01g/mol) that should be added to 20.00 ml of cyclohexane (d = .779g/ml) to make a .05 molal solution.

    I did this problem but i dont know if i did it correctly.
    first i found the mass of cyclohexane by using m=dv.

    (.05moles solute/kg solvent)(15.58g)(1kg/1000g)(147.01g/mol) = .11g

    does this seem correct. I am not sure.

    Thanks.
     
  2. jcsd
  3. Mar 4, 2004 #2
    That's what I got...
     
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