Question

Match the pka (determined in an unknown mixture of water and an organic solvent) with the correct acid: N=CH3 OH A D 0 F3C OH H3C H B E Eto OEt O2N-CH3 с F I. 0.8 II. 19.4 III. 28 What is the pka of A? What is the pka of B? What is the pka of C? What is the pka of D? What is the pka of E? What is the pka of F? IV. 15.7 V. 10.0 VI. 5.2

HELP Please!!!

Answer 1

Lower the pKa higher is Ka which means more dissociation which makes a solution strong acid .

Hence on arranging on basis of decreasing acidity we weill get

B>D>F>E>C>A

So pKa order will

B<D<F<E<C<A

B=0.8

D=5.2

F=10.0

E=15.7

C=19.4

A=28