1 files changed, 15 insertions, 0 deletions
diff --git a/858/CH2/EX2.28/example_28.sce b/858/CH2/EX2.28/example_28.sce
new file mode 100755
index 000000000..95249c066
--- /dev/null
+++ b/858/CH2/EX2.28/example_28.sce
@@ -0,0 +1,15 @@
+clc
+clear 
+printf("example 2.28 page number 82\n\n")
+
+//to find hardness of water
+
+volume_NaCl=50    //in l
+c_NaCl=5000       //in mg/l
+
+m=volume_NaCl*c_NaCl;
+equivalent_NaCl=50/58.5;
+
+hardness=equivalent_NaCl*m;
+
+printf("hardness of water = %f mg/l",hardness/1000)