Question

plz answer this question in the pic tomorrow is my exam

Answer 1

$\% \alpha = 4\% \\ \alpha = 4 \times {10}^{ - 2} \\ c = 0.01 molar \\ k = \alpha ^{2} c \\ =$
k= (4.2 )^2x 10 ^-4 x 10^-2
=17.64x10^-6