InterviewSolution
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InterviewSolution
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(a) what type of deviation is shown by a mixture of ethanol and acetone? Give reason (b) A solution of glucose (molar mass =180 g`mol^(-1))` in water is labelled as 10% (by mass) what would be the molality and molarity of the solution ? (Density of solution =1.2 `gL^(-1))` |
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Answer» (a) Ethanol and acetone shows + ve deviation beacuase both are non polar compunds and after mixing force of attraction decreases Like particel force of attractio `gt` unike particle force of attraction (b) Molarity `=("WB"xx1000)/("MB"xx"WA")=(10xx1000)/(180xx90)=0.617 M` Vs =`("MS")/("ds")rarr(100)/(1.2 g//ml)` Molarity `=("WB"xx1000)/("MB"xx"Vs")rarr(10xx1000)/(180xx100)xx1.2=0.667` m |
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