the density of 3M {molar} solution of NaCl is 1.25 gm/ml. calculate molality of solution.
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Let the volume be 1L.
Mass of solution =volume *density
= 1000*1.25=1250
Mass of solute = mass of 3 moles of NaCl
=58.8*3=175.5
Mass of solvent=1250-175.5
Molality=3/1.07=2.8
Mass of solution =volume *density
= 1000*1.25=1250
Mass of solute = mass of 3 moles of NaCl
=58.8*3=175.5
Mass of solvent=1250-175.5
Molality=3/1.07=2.8
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