26.8 g Na2SO4.nH2O has 12.6 g water. Find the value of n.

Asked by Anil | 15th May, 2017, 12:33: PM

Expert Answer:

Na2SO4 x n H2O

Molar mass of salt = (142 + 18n)

Mass of water = 12.6/26.8 x (142 + 18n)

18 n = 12.6/26.8 (142 + 18n)

n = 7

 

Answered by Vaibhav Chavan | 15th May, 2017, 12:50: PM