Question

An aqueous solution contain 10% by wight caco3 10% glucose calculate compostion of solution​

Answer 1

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Percentage by wt of urea =10% & % by wt of glucose =5%

murea=9010/60×1000=90×61000=1.85

mglucose=955/180×1000=180×955×1000=0.29 m

∴m=mureal+mglu=1.85+0.29=2.14

∴ΔTf=Kf×m=1.8×2.14=3.98oC

0−Tf sol=3.98oC   ∴Tf sol=−3.98oC

Hope it helps