Question

A compound MX₂ has observed and normal molar masses 65.6 and 164 respectively. Calculate the apparent degree of ionization of MX₂ -

• A. 75 %
• B. 85 %
• C. 65 %
• D. 25 %

Answer 1

Answer: (A)

75 %

Answer 2

i = $\frac{Theo.\mspace{6mu} Mw.}{{exp.}\mspace{6mu} Mw}$

= $\frac{164}{65.6}$ = 2.5

a = $\frac{1 - i}{n - 1}$

= $\frac{2.5 - 1}{3 - 1}$ = 0.75

a = 75 %