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diff --git a/632/CH3/EX3.17/example3_17.sce b/632/CH3/EX3.17/example3_17.sce
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+//clc()
+msolu = 100;//g
+MK2CO3 = 138.20;//g/mol
+percent1 = 50;//%
+mK2CO3 = percent1 *msolu / 100;
+NK2CO3 = mK2CO3 / MK2CO3;
+mwater = msolu - mK2CO3;
+Nwater = mwater / 18.06;
+Mpr = NK2CO3 * 100 / (NK2CO3 + Nwater);
+sp.gr  =1.53;
+Vsolu = msolu/sp.gr;//mL
+Vwater = mwater / 1;//mL
+Vpr = Vwater * 100/ Vsolu;
+Molality = NK2CO3 / (mwater * 10^-3);
+Molarity = NK2CO3 / (Vsolu * 10^-3);
+Eq.wt = MK2CO3 / 2;
+No = mK2CO3/Eq.wt;
+N = No / (Vsolu * 10^-3);
+disp("%",Mpr,"(a)Mole prcent of salt = ") 
+disp("%",Vpr,"(b)Volume percent of water = ")
+disp("mol/kg",Molality,"(c)Molality = ")
+disp("mol/L",Molarity,"(d)Molarity = ")
+disp("N",N,"(e)Normality")
+\ No newline at end of file