Question

Find the weight of water present in 1.61 g of Na2So4.10H2o.
plz don't give the answer in the way it is given on the internet try another way n explain it briefly .​

Answer 1

Answer:

0.9 gm

Explanation:

Moles of Na2SO4 . 10H2O

wt in gram 1.61

__________ = _____ = 0.005 Moles

Molecular wt 322

Moles of water = 10 × moles of Na2SO4 .

10H2O

= 10 × 0.05 = 0.05

wt of water = 0.5 × 18 = 0.9 gm