//lubricants// //example 3.7.14// clc volume_oil=9//volume of oil titrated(ml)// density_oil=0.81//density of oil titrated// wt_oil=volume_oil*density_oil//weight f oil saponified(gms)// volume=3.75//volume of alcoholic KOH consumed to neutralize fatty acids(ml)// normality_KOH=0.1//normality of KOH // A=volume*normality_KOH*56/wt_oil//formula for acid value// printf("\nAcid value of oil is %.2f mgs KOH",A);