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babbagee
Mar3-04, 09:31 PM
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.

thunderfvck
Mar4-04, 12:46 AM
That's what I got...