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diff --git a/1427/CH5/EX5.28/5_28.sce b/1427/CH5/EX5.28/5_28.sce
new file mode 100644
index 000000000..f2bb0a91a
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+++ b/1427/CH5/EX5.28/5_28.sce
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+//ques-5.28
+//Calculating hydrolysis constant and degree of hydrolysis of sodium acetate solution
+clc
+c=0.1;//molarity of sodium acetate solution
+Kw=1.1*10^-4;//ionic product of water (*10^-10)
+Ka=1.8*10^-5;//dissociation constant
+Kh=Kw/Ka;//hydrolysis constant (*10^-10)
+h=sqrt(Kh/c);//degree of hydrolysis (*10^-5)
+printf("Hydrolysis constant of acetate solution is %.2f*10^-10 and degree of hydrolysis is %.2f*10^-5.",Kh,h);