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Diffstat (limited to '3856/CH11/EX11.1/Ex11_1.sce')
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1 files changed, 23 insertions, 0 deletions
diff --git a/3856/CH11/EX11.1/Ex11_1.sce b/3856/CH11/EX11.1/Ex11_1.sce new file mode 100644 index 000000000..d71045216 --- /dev/null +++ b/3856/CH11/EX11.1/Ex11_1.sce @@ -0,0 +1,23 @@ +//Calculate the concentration of the undissociated acid ,the H positive ion and the CN negative ion .And the percent dissociation
+
+//Example 11.1
+
+clc;
+
+clear;
+
+Ka=4.9*10^-10; //Dissociatin constant of weak acid HCN at 298 K
+
+x1=0.050; //Concentration of HCN in M ,(HCN is a aweak acid assuming that at equilibrium the undissociated molecule of HCN is also same )
+
+x=(Ka*x1)^(1/2); //Concentration of H ion and CN ion at equilibrium in M (cocentration of both ion is equal)
+
+printf("Concentration of ion = %.0f*10^-6 M",x*10^6);
+
+x2=x1-x; //Concentration of undissociated acid at equilibrium in M
+
+printf("\n Concentration of undissociated acid at equilibrium = %.3f M",x2)
+
+X=(x/x1)*100; //Percent dissociation of HCN
+
+printf("\nPercent dissociation = %.0f*10^-2 percent ",X*10^2);
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