The hydronium ion concentration of an aqueous solution of 0.546 M triethylamine (a weak base with...

The hydronium ion concentration of an aqueous solution of 0.546 M triethylamine (a weak base with the formula (C₂H₅)₃N) is ..

Expert Solution

(C2H5)3N(aq) + H2O(l) ------------> (C2H5)3NH^+ (aq) + OH^-

I 0.546 0 0

C -x +x +x

E 0.546-x +x +x

Kb = [(C2H5)3NH^+][OH^-]/[(C2H5)2N]

5.2*10^-4 = x*x/0.546-x

5.2*10^-4 *(0.546-x) = x^2

x = 0.0166

[OH^-] =x = 0.0166M

[H3O^+] = Kw/[OH^-]

= 1*10^-14/0.0166 = 6*10^-13 M >>>>answer

queen_honey_blossom answered 2 years ago

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