Depression of freezing point of `0.01` molal aq. `CH_(3)COOH` solution is `0.02046^(@)` . 1 molal urea solution freezes at `-1.86^(@)`C . Assuming molarity equal to molarity , pH of `CH_(3)COOH` solution is :
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`DeltaT_(t)=ixx1.86xx0.01` Given `DeltaT_(t)=0205` `:.i=1.1=1+(2-1)alpha` `alpha=0.1` `[H^(+)]=Calpha=0.01xx0.1=10^(-3)M`
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