What is the molality of a solution containing 200 mg of urea (molar ma

1.	What is the molality of a solution containing 200 mg of urea (molar mass = 60 g mol^(-1)) ?
Answer» 0.0825 0.825 0.498 0.0014 SOLUTION :No. of moles of UREA `= (0.2g)/(("60 G mol"^(-1)))=0.0022` mol Mass of water in kg `=(40)/(1000)=0.04kg` Molality of solution `= (("0.0033 mol"))/(("0.04 kg"))` `= 0.0825 "mol Kg"^(-1)=0.0825`m .

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