Question

A compound $M{X}_2$ has observed and normal molar masses 65.6 and 164 respectively. Calculate the apparent degree of ionization of $M{X}_2$

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

Answer 1

The correct option is A $75\%$

$i=\frac{Theo.Mw.}{exp.Mw}=\frac{164}{65.6}=2.5\alpha =\frac{i-1}{n-1}=\frac{2.5-1}{3-1}=0.75\alpha =75\%$