BE Electronics and Telecommunication Engineering Semester 1 (FE First Year)University of Mumbai
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# 20ml of Lubricating Oil Was Dissolved in Alcohol the Solution Was Titrated Against 0.1 N Koh Solution. at the End Point the Burette Reading Was Found to Be 2. 5ml Calculate the Acid Value of the Oil. - BE Electronics and Telecommunication Engineering Semester 1 (FE First Year) - Applied Chemistry 1

#### Question

20ml of lubricating oil was dissolved in alcohol The solution was titrated against 0.1 N KOH solution. At the end point the burette reading was found to be 2. 5ml calculate the acid value of the oil.  ( density of oil= 0.86 g/ml)

#### Solution

Given data  :-    Normality of KOH   =   0. 1N

Volume of KOH  = 2.5 ml

Density of oil    = 0.86g/ml

Volume of oil      =  20m/.

To find  :-              Acid value of oil

Formula  :-    Acid value =("Vol. of KOH xx Normality of KOH xx 56")/("Weight of oil")

Solution  :-              weight of oil = Density x Volume

= 0.86 x 20

= 17.2gms.

Acid value          =("Vol of KOH xx Normality xx 56")/("Weight of oil")

=(2.5 xx 0.1 xx 56)/17.2

= 0.814mg

∴  Acid value = 0.814 mg/ gm of the oil.

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#### APPEARS IN

Solution 20ml of Lubricating Oil Was Dissolved in Alcohol the Solution Was Titrated Against 0.1 N Koh Solution. at the End Point the Burette Reading Was Found to Be 2. 5ml Calculate the Acid Value of the Oil. Concept: Additives in blended Oils.
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