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प्रश्न
1.4 gm of oil required 1.8 ml of 0.01N KOH for neutralization. Calculate the acid value and mention whether the oil is suitable to be used or not.
उत्तर
Given Data:- Weight of the oil = 1.4 gm.
Normality of KOH = 0.01.
Volume of KOH = 1.8 ml.
To find:- Acid value of the oil.
Formula:- Acid value = `"Vol.of KOH x Normality of KOH x 56"/"Weight of oil"`.
Solution :- Acid value = `{1.8 xx 0.01 xx 56)/1.4`.
= 0.72mg
∴ Acid Value = 0. 72 mg/gm of oil.
As the acid value is much higher than 0. 1 , the oil is not suitable to be used.
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संबंधित प्रश्न
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)
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Find the acid value of the given oil whose 20 ml required 2.8 ml of N/10 KOH during titration .( Density of oil =0.86 g/ml )
