Question

What is the hypothetical van't Hoff factor of magnesium nitrate, Mg(NO3)2?

Answer 1

Answer:

The hypothetical van't Hoff factor of magnesium nitrate,$Mg(NO_3)_2$ is 3 .

Explanation:

Lets calculate -

$Mg(NO_3)_2\rightarrow Mg^2^+ +2NO_3^-$

We know that ,

$i=\alpha n+(1-\alpha )$

Dissociation should be 100% for the hypothetical vant hoff factor , that is

$\alpha =1$ and $n=3$ for  $Mg(NO_3)_2$

Therefore , putting the given values ,

$i=1\times3+(1-1 )$

$i=3+0$

$i=3$

Hence , the answer is 3.