Question

4% NaOH solution (mass/volume) and 6% urea solution (mass/volume) are equimolar but not isotonic .Why?

Answer 1

Both 4% NaOH (mass / volume) and 6% urea (mass / volume) have the same concentration of 1 M.

However they are not isotonic because :

NaOH undergoes dissociation in solution.

Therefore, the number of particles in NaOH is more than that in urea solution.

Answer 2

Answer:

Explanation:

Both 4% NaOH (mass / volume) and 6% urea (mass / volume) have the same concentration of 1 M.

However they are not isotonic because :

NaOH undergoes dissociation in solution.

Therefore, the number of particles in NaOH is more than that in urea solution.