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diff --git a/2966/CH3/EX3.11/3_11.sce b/2966/CH3/EX3.11/3_11.sce
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+//lubricants//
+//page 3.33 example 1//
+clc
+wt_oil=2.5//weight f oil saponified(gms)//
+blank=49.0//volume blank titration reading(ml)//
+back=26.4//volume back titration reading(ml)//
+volume=blank-back//volume of alcoholic KOH consumed(ml)//
+normality_KOH=0.4//normality of KOH//
+S=volume*normality_KOH*56/wt_oil//formula for saponification value//
+printf("\nSaponification value of oil is %.3f mg/g",S);
+\ No newline at end of file