Question

calculate molarity of 3mol of Na2SO4.10H2O in 250ml water. Assume Volume due to solute negligible.​

Answer 1

given.

no of moles = 3

volume=0.25L

molarity= moles of solute/ volume of solution

            = 3/0.25

             =300/25

             =12 molar

Answer 2

Explanation:

water will also come from 10extra molecules of h20 that is present in na2so4 that is 3moles x 10molecules=30ml of extra water will be added to 250ml of water and in case we can consider volume of solvent=volume of soln...