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diff --git a/1427/CH1/EX1.22/1_22.sce b/1427/CH1/EX1.22/1_22.sce
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+//ques-1.22
+//Finding hardness of given water sample
+clc
+V=10000;//volume of water teated (in L)
+v1=200;//volume of HCl required by cationic resin (in L)
+v2=200;//volume of NaOH required by anionic resin (in L)
+N=0.1;//normality of HCl and NaOH
+h=v1*N*(1000/V)*50;//hardness (in ppm)
+printf("Hardness of given sample is %d ppm.",h);