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diff --git a/1478/CH3/EX3.7.7/3_7_7.sce b/1478/CH3/EX3.7.7/3_7_7.sce
new file mode 100755
index 000000000..4ac48eada
--- /dev/null
+++ b/1478/CH3/EX3.7.7/3_7_7.sce
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+//lubricants//
+//example 3.7.7//
+clc
+wt_oil=1.55//weight f oil saponified(gms)//
+blank=26//volume blank titration reading(ml)//
+back=15//volume back titration reading(ml)//
+volume=blank-back//volume of alcoholic KOH consumed(ml)//
+normality_KOH=1/2//normality of KOH //
+S=volume*normality_KOH*56/wt_oil//formula for saponification value//
+printf("\nSaponification value of oil is %.1f mgs KOH",S);
+\ No newline at end of file