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diff --git a/1478/CH3/EX3.7.5/3_7_5.sce b/1478/CH3/EX3.7.5/3_7_5.sce
new file mode 100755
index 000000000..54861b42f
--- /dev/null
+++ b/1478/CH3/EX3.7.5/3_7_5.sce
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+//lubricants//
+//example 3.7.5//
+clc
+wt_oil=5//weight f oil saponified(gms)//
+blank=40//volume blank titration reading(ml)//
+back=10//volume back titration reading(ml)//
+strength_KOH=1.4/50//strength of KOH (gm/ml)//
+normality_KOH=strength_KOH*1000//normality of KOH//
+normality_HCl=.5//normality of HCl//
+e=normality_HCl/normality_KOH//for equivalence in titration//
+volume=(blank-back)*e//volume of alcoholic KOH consumed(ml)//
+S=volume*normality_KOH*56/wt_oil//formula for saponification value//
+printf("\nSaponification value of oil is %.0f mgs KOH",S);
+\ No newline at end of file