Question

Question 47 of 52 Submit An unknown weak acid with a concentration of 0.084 M has a pH of 1.80. What is the Ka of the weak acid? 1 2 3 C +/- x 100

Answer 1

Weak acid is the electrolyte nihich dissocia partially in aqueous medium. let us consider HX as the unknown aced the - HX H² + x aula As we are given that pH of HX is to go and pHU -log(ht].D. - 1.80 = leachta , tie [H] = 10-1-80 14+) : 0.016 M. I and THX] = 0.084 M . [ Given) HX a H+ + - Initial 0.084 M OSO Change -0.016 M +0.016M +0.016 M . Equilibriuth 0.068M 0.016M 0.016M Dissociation cavistec, na = [ht] [X] in THX] dissociation constant is given as concentration of products divided by conc.

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