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  • Calculate the molality of an aqueous solution containing 3.0g of urea (mol.mass=60) in 250g of water.

Calculate the molality of an aqueous solution containing 3.0g of urea (mol.mass=60) in 250g of water.

Answers (1)

No. of moles of urea=given mass/molar =3\60=0.05mol
molality=no. of mole/mass of solvent(in kg)
             =0.05*1000\250=0.2 m

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Sumit Saini

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