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Grade: 12 

                        
A crystalline salt Na 2 SO 4 .xH 2 O on heating losses 55.9 per cent of its mass. The formula of crystalline salt is---
6 years ago

Answers : (1)

Manas Satish Bedmutha
22 Points 
							
Mol. wt. of hydrated salt = 46 + 96 + 18x = 142 +18x
Wt. of water lost = 18x
So, by given, 18x / (142+18x) = 55.9
On sloving, we get, x=10
So Formula = Na2SO4. 10 H2O
6 years ago
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