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Discussion Response Post to: Molarity & Molality

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10904him (114)

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1- Mol Wt. =158
100 gm sol ----5 gm solute
100 gm sol----5/158 mol =0.032 mol of solute
Mass of solvent = 100 -5= 95 gm
Molality=0.032/0.095 = 0.34 m Ans

Vol of soln = 100/1.04=96.2 ml
Molarity = 0.032/0.0962 = 0.33 M Ans

Mol of water = 95/18 =5.3 mol
Mol of solute = 0.032
Mol Fraction = 0.032 / 5.332 = 6 x 10 ^-3 Ans

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