Question

Van't Hoff factor for \[\ce{Na2SO4*10H2O}\] solution, assuming complete ionization is ______.

Options

• 1

• 3

• 13

• 2

Answer 1

Van't Hoff factor for \[\ce{Na2SO4*10H2O}\] solution, assuming complete ionization is 3.

Explanation:

The molecule \[\ce{Na2SO4*10H2O}\] dissociates as follows:

\[\ce{2Na+}\]

\[\ce{2SO^2-_4}\]

\[\ce{10H2O}\]

As water is a non-electrolyte, it does not undergo ionization and hence does not influence the van't Hoff factor value.