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Answer the Followiiig Questions: Calculate the Boiling Point of Urea Solution When 6 G of Urea is Dissolved in 200 G of Water. - Chemistry (Theory)

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Sum

Answer the followiiig questions: 
Calculate the boiling point of urea solution when 6 g of urea is dissolved in 200 g of water.
(Kb for water = 0.52 K kg mol–1, bolining point of pure water = 373 K, mol. wt. of urea = 60) 

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Solution

`T_b^o`= 373 K      M.W. of urea  = 60 g/mol

kb = 0.52  K  kg/mol 
Wurea = 6g
Wsolvent = 200g
Tb = ? 
As we know 
`Delta T_b = K_bxx (W_2)/(M_2)xx1000/W_1`

`Tb - T_b^0 = Kbxx(W_2)/(M_2)xx1000/(W_1)` 

`T_b-373 =  0.52xx6/60xx 1000/200`

`Tb = 373.25 K` 

Concept: Relative Molecular Mass of Non-volatile Substances - Elevation in Boiling Point Method
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